Versions history | AdGuard

Finally, a nice big update with lots of new features :relieved:. Among them, we want to highlight a couple of noticeable quality-of-life changes that have been requested for a long time.

Global protection pause

First of all, there's now a way to pause protection for a set period, ranging from 30 seconds to an entire day. This is great for when you need to access a site that's mistakenly blocked, or when you want to temporarily disable AdGuard Home without turning it off completely.

Once the pause time is out, AdGuard Home will switch protection back on.

Better Safe Search controls

Secondly, you can now fine-tune Safe Search settings by enabling or disabling it for specific services like Google, Bing, YouTube, and more.

The same can be done on a per-client basis as well. Another minor improvement to the Safe Search is better support for IPv6 addresses.

This is a security and bugfix release. There are no changes besides the update of the Go programming language version and fixes to a few bugs. More substantial changes are to come in the subsequent updates.

Today’s one features further customization options for outbound queries, new option to drop requests based on their question types, and various bugfixes.

This is a hotfix release to prevent panics when using unencrypted DNS-over-HTTP, which affected people running AdGuard Home behind an HTTP reverse proxy.

Ignoring talkative colleagues can be tough in real life 🤫. Fortunately, there are more options in the digital world. This new release of AdGuard Home adds a way to exclude certain hostnames from the query log and statistics, which can help with devices and apps that like to talk too much.

Fonts! Сolors! Buttons! Everybody likes to discuss the design of a user interface, but we like to ship bug fixes and new features to our users even more 🚢. Besides the tweaks in the dark theme, this release includes support for the DNS64 standard, a couple of new blockable services, as well as a few bug fixes and internal improvements.

One thing that nobody likes during long nights is a user interface that is way too bright to look at 🔦. In this release, AdGuard Home finally delivers one of its most commonly requested features: the dark theme!

The new dark theme is currently still experimental, and there are a few rough edges here and there. If you want to report them, please follow the instructions in issue #5375.

A hotfix for the cold season ⛄.

While the goalkeepers at the World Cup are doing their best to keep their goal safe, we’re doing our best to keep our users safe and making sure they receive the latest security updates 🛡️ as soon as possible. As a nice bonus, we have also added a button to easily clear the DNS cache.

Twitter may be in flames 🔥, but you can't get away from social media just as easily. Well, maybe it's become a little easier now, thanks to the contribution from @sandervankasteel: AdGuard Home can now block a few most popular Mastodon instances. Take a break from doomscrolling, you deserve it!

We've also added the --update command-line option to update AdGuard Home without the need to deal with the UI.

Despite this release appearing around Halloween, it shouldn't be spooky at all. The main novelty is that the list of services blockable with a single click is now synchronized with AdGuard DNS to make the user experience more unified across AdGuard services. We've also improved support for HTTP/3 as well as fixed a few annoying bugs.

This is a security release. There are no new changes besides the update of the Go programming language version. More substantial changes are to come in the subsequent updates.

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Security

Go version has been updated to prevent the possibility of exploiting the CVE-2022-2879, CVE-2022-2880, and CVE-2022-41715 Go vulnerabilities fixed in Go 1.18.7.

Sometimes, even a hotfix needs a hotfix. In the previous release, our mitigations turned out to be too restrictive, preventing some AdGuard Home features from working properly. In this release, we fix this along with a few other bugs.

We have also added experimental support for the HTTP/3 standard in the UI, DNS upstreams, and DNS clients!

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Security

As an additional CSRF protection measure, AdGuard Home now ensures that requests that change its state but have no body (such as `POST /control/stats_reset` requests) do not have a `Content-Type` header set on them #4970.

Added

Experimental HTTP/3 Support

See #3955 and the related issues for more details. These features are still experimental and may break or change in the future.

DNS-over-HTTP/3 DNS and web UI client request support. This feature must be explicitly enabled by setting the new property dns.serve_http3 in the configuration file to true.

DNS-over-HTTP upstreams can now upgrade to HTTP/3 if the new configuration file property dns.use_http3_upstreams is set to true.

Upstreams with forced DNS-over-HTTP/3 and no fallback to prior HTTP versions using the `h3://` scheme.

Fixed

User-specific blocked services not applying correctly #4945, #4982, #4983.

only application/json is allowed errors in various APIs #4970.

This is a security release. Users are encouraged to update AdGuard Home as soon as possible.

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Security

A Cross-Site Request Forgery (CSRF) vulnerability has been discovered. The CVE number is to be assigned. We thank Daniel Elkabes from Mend for reporting this vulnerability to us.

SameSite Policy

The SameSite policy on the AdGuard Home session cookies has been upgraded to Lax. Which means that the only cross-site HTTP request for which the browser is allowed to send the session cookie is navigating to the AdGuard Home domain.

Users are strongly advised to log out, clear browser cache, and log in again after updating.

Removal Of Plain-Text APIs (BREAKING API CHANGE)

We have implemented several measures to prevent such vulnerabilities in the future, but some of these measures break backwards compatibility for the sake of better protection.

The following APIs, which previously accepted or returned text/plain data, now accept or return data as JSON. All new formats for the request and response bodies are documented in openapi/openapi.yaml and openapi/CHANGELOG.md.

GET /control/i18n/current_language;

POST /control/dhcp/find_active_dhcp;

POST /control/filtering/set_rules;

POST /control/i18n/change_language.

Stricter Content-Type Checks (BREAKING API CHANGE)

All JSON APIs now check if the request actually has Content-Type set to application/json.

Other Security Changes

Weaker cipher suites that use the CBC (cipher block chaining) mode of operation have been disabled #2993.

Added

Support for plain (unencrypted) HTTP/2 #4930. This is useful for AdGuard Home installations behind a reverse proxy.

Fixed

Incorrect path template in DDR responses #4927.

In this hotfix release with the “lucky” patch number we have fixed a couple of issues that prevented some DHCP clients from receiving their assigned IP addresses. We've also added the new dns.ipset_file setting, which should help users who maintain large ipsets, for example to use in firewall or VPN settings.

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Added

The new optional dns.ipset_file property, which can be set in the configuration file. It allows loading the ipset list from a file, just like dns.upstream_dns_file does for upstream servers #4686.

Changed

The minimum DHCP message size is reassigned back to BOOTP's constraint of 300 bytes #4904.

Fixed

Panic when adding a static lease within the disabled DHCP server #4722.

What better way is there to celebrate the coming of autumn than a patch release? In this new version, we have extended and significantly improved AdGuard Home's built-in DHCP server (fixing many bugs in the process) as well as improved our service blocking feature, thanks to many contributions from the community. As always, we have also updated our tooling to make sure that we use the latest versions without any known security issues.

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Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-27664 and CVE-2022-32190 Go vulnerabilities fixed in Go 1.18.6.

Added

New bool, dur, u8, and u16 DHCP options to provide more convenience on options control by setting values in a human-readable format #4705. See also a Wiki page.

New del DHCP option which removes the corresponding option from server's response #4337. See also a Wiki page.

NOTE: This modifier affects all the parameters in the response and not only the requested ones.

A new HTTP API, GET /control/blocked_services/services, that lists all available blocked services #4535.

Changed

The DHCP options handling is now closer to the [RFC 2131][rfc-2131] (#4705).

When the DHCP server is enabled, queries for domain names under dhcp.local_domain_name not pointing to real DHCP client hostnames are now processed by filters (#4865).

The DHCPREQUEST handling is now closer to the RFC 2131 #4863.

The internal DNS client, used to resolve hostnames of external clients and also during automatic updates, now respects the upstream mode settings for the main DNS client #4403.

Deprecated

Ports 784 and 8853 for DNS-over-QUIC in Docker images. Users who still serve DoQ on these ports are encouraged to move to the standard port 853. These ports will be removed from the EXPOSE section of our Dockerfile in a future release.

Go 1.18 support. Future versions will require at least Go 1.19 to build.

Fixed

The length of the DHCP server's response is now at least 576 bytes as per RFC 2131 recommendation #4337.

Dynamic leases created with empty hostnames #4745.

Unnecessary logging of non-critical statistics errors #4850.

This hot summer is approaching its end, but hotfixes are still coming in! In this release, we have fixed configuration file migrations not working for people with AdGuard Home versions older than v0.107.7, as well as made a few minor improvements.

--

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--

Added

Bilibili service blocking #4795.

Changed

DNS-over-QUIC connections now use keepalive.

Fixed

Migrations from releases older than v0.107.7 failing #4846.

In this new release, we add support for the new Discovery of Designated Resolvers DDR feature, which allows clients using plain DNS to automatically switch to secure protocols. As well as an Arabic localization and fixes for a couple of rather annoying bugs.

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Added

Arabic localization.

Support for Discovery of Designated Resolvers (DDR) according to the RFC draft #4463.

Changed

Our snap package now uses the `core22` image as its base #4843.

Fixed

DHCP not working on most OSs #4836.

invalid argument errors during update checks on older Linux kernels #4670.

Data races and concurrent map access in statistics module #4358, #4342.

Although not a lot of time has passed since the last release, this new one contains a security update, a new feature, a new platform, and some minor fixes :wrench:. It's always nice to have those!

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Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-32189 Go vulnerability fixed in Go 1.18.5. Go 1.17 support has also been removed, as it has reached end of life and will not receive security updates.

Added

Domain-specific upstream servers test. If such test fails, a warning message is shown #4517.

`windows/arm64` support #3057.

Changed

UI and update links have been changed to make them more resistant to DNS blocking.

Fixed

Several UI issues #4775, #4776, #4782.

Removed

Go 1.17 support, as it has reached end of life.

Just like a sudden burst of rain during an otherwise hot and sunny summer day, mistakes happen. But unlike rain, we can fix them! Which is exactly what we did in this bugfix release.

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Security

Go version was updated to prevent the possibility of exploiting the `CVE-2022-1705`, `CVE-2022-32148`, `CVE-2022-30631`, and other Go vulnerabilities fixed in Go 1.17.12.

Fixed

DHCP lease validation incorrectly letting users assign the IP address of the gateway as the address of the lease #4698.

Updater no longer expects a hardcoded name for AdGuardHome executable #4219.

Inconsistent names of runtime clients from hosts files #4683.

PTR requests for addresses leased by DHCP will now be resolved into hostnames under dhcp.local_domain_name #4699.

Broken service installation on OpenWrt #4677.

The summer is finally here and with it comes a new version of AdGuard Home!

DNS-over-QUIC: RFC 9250

The long-awaited DNS-over-QUIC protocol has finally graduated from a draft to being a real standard, RFC 9250. In this release, we add support for the final version of the standard in a backwards-compatible way.

More Control Over Upstreams

You can now specify an upstream for all subdomains of a domain while excluding the domain itself. For example, if you want queries for server-1.example.com to be resolved by DNS server 1.1.1.1, but leave example.com to be resolved by your default upstream (in this example, 94.140.14.14), use:

94.140.14.14
[/*.example.com/]1.1.1.1

Speaking of upstreams. Now you don't have to remember precise IP addresses of plain DNS upstreams. As long as your bootstrap servers can resolve them, you can use the new udp:// upstream address scheme to resolve upstreams' addresses automatically:

udp://one.one.one.one # Same as 1.1.1.1.

Other Notable Changes

Users now have more control over how runtime client information is gathered, including the ability to completely disable this feature.

The EDNS Client Subnet information from clients' requests is now shown on the Query log page.

As usual, we strive to keep our tools up-to-date in order to make sure that our users don't fall prey to vulnerabilities.

There are many more smaller changes and fixes; just look at the full changelog below!

Acknowledgements

A special thanks to our open-source contributor, @Lanius-collaris, as well as to everyone who filed and inspected issues, added translations, and helped us test this release!

Full Changelog

Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-29526, CVE-2022-30634, CVE-2022-30629, CVE-2022-30580, and CVE-2022-29804 vulnerabilities.

Enforced password strength policy #3503.

Added

Support for the final DNS-over-QUIC standard, (RFC 9250) #4592.

Support upstreams for subdomains of a domain only #4503.

The ability to control each source of runtime clients separately via clients.runtime_sources configuration object #3020.

The ability to customize the set of networks that are considered private through the new dns.private_networks property in the configuration file #3142.

EDNS Client-Subnet information in the request details section of a query log record #3978.

Support for hostnames for plain UDP upstream servers using the udp:// scheme #4166.

Logs are now collected by default on FreeBSD and OpenBSD when AdGuard Home is installed as a service #4213.

Changed

On OpenBSD, the daemon script now uses the recommended /bin/ksh shell instead of the /bin/sh one #4533. To apply this change, backup your data and run AdGuardHome -s uninstall && AdGuardHome -s install.

The default DNS-over-QUIC port number is now 853 instead of 754 in accordance with (RFC 9250) #4276.

Reverse DNS now has a greater priority as the source of runtime clients' information than ARP neighborhood.

Improved detection of runtime clients through more resilient ARP processing #3597.

The TTL of responses served from the optimistic cache is now lowered to 10 seconds.

Domain-specific private reverse DNS upstream servers are now validated to allow only *.in-addr.arpa and *.ip6.arpa domains pointing to locally-served networks #3381. Note: If you already have invalid entries in your configuration, consider removing them manually, since they essentially had no effect.

Response filtering is now performed using the record types of the answer section of messages as opposed to the type of the question #4238.

Instead of adding the build time information, the build scripts now use the standardized environment variable [SOURCE_DATE_EPOCH][repr] to add the date of the commit from which the binary was built #4221. This should simplify reproducible builds for package maintainers and those who compile their own AdGuard Home.

The property local_domain_name is now in the dhcp object in the configuration file to avoid confusion #3367.

The dns.bogus_nxdomain property in the configuration file now supports CIDR notation alongside IP addresses #1730.

Configuration Changes

In this release, the schema version has changed from 12 to 14.

Object clients, which in schema versions 13 and earlier was an array of actual persistent clients, is now consist of persistent and runtime_sources properties:

# BEFORE:
'clients':
- name: client-name
  # …

# AFTER:
'clients':
  'persistent':
    - name: client-name
      # …
  'runtime_sources':
    whois: true
    arp: true
    rdns: true
    dhcp: true
    hosts: true

The value for clients.runtime_sources.rdns field is taken from dns.resolve_clients property. To rollback this change, remove the runtime_sources property, move the contents of persistent into the clients itself, the value of clients.runtime_sources.rdns into the dns.resolve_clients, and change the schema_version back to 13.

Property local_domain_name, which in schema versions 12 and earlier used to be a part of the dns object, is now a part of the dhcp object:

# BEFORE:
'dns':
  # …
  'local_domain_name': 'lan'

# AFTER:
'dhcp':
  # …
  'local_domain_name': 'lan'

To rollback this change, move the property back into the dns object and change the schema_version back to 12.

Deprecated

The --no-etc-hosts option. Its functionality is now controlled by clients.runtime_sources.hosts configuration property. v0.109.0 will remove the flag completely.

Fixed

Query log occasionally going into an infinite loop #4591.

Service startup on boot on systems using SysV-init #4480.

Detection of the stopped service status on macOS and Linux #4273.

Case-sensitive ClientID #4542.

Slow version update queries making other HTTP APIs unresponsive #4499.

ARP tables refreshing process causing excessive PTR requests #3157.

This is a small security-oriented update. This AdGuard Home version requires Go v1.17 and later to build, because older Go versions receive no further support, including security patches.

Aside from that, we've slightly updated $dnsrewrite modifier to support the user-defined Discovery of Designated Resolvers (DDR). We are planning on continuing to make more improvements to it in the future updates, see #4463.

The rest are minor changes and ever-present bugfixes.

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Security

User-Agent HTTP header removed from outgoing DNS-over-HTTPS requests.

Go version was updated to prevent the possibility of exploiting the CVE-2022-24675, CVE-2022-27536, and CVE-2022-28327 vulnerabilities.

Added

Support for SVCB/HTTPS parameter `dohpath` in filtering rules with the `dnsrewrite` modifier according to the RFC draft #4463.

Changed

Filtering rules with the `dnsrewrite` modifier that create SVCB or HTTPS responses should use `ech` instead of `echconfig` to conform with the latest drafts.

Deprecated

SVCB/HTTPS parameter name echconfig in filtering rules with the dnsrewrite modifier. Use ech instead. v0.109.0 will remove support for the outdated name echconfig.

Obsolete `--no-mem-optimization` option #4437. v0.109.0 will remove the flag completely.

Fixed

I/O timeout errors when checking for the presence of another DHCP server.

Network interfaces being incorrectly labeled as down during installation.

Rules for blocking the QQ service #3717.

Removed

Go 1.16 support, since that branch of the Go compiler has reached end of life and doesn't receive security updates anymore.

This is a security release. There are no new changes besides the update of the Go programming language version.

More substantial changes are to come in the subsequent updates.

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Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-24921 vulnerability. As the CVE page is still showing “reserved” at the time of publishing, see also golang/go#51112.

A small update to fix a couple bugs and shore up some Go vulnerabilities.

More substantial changes are to come in the subsequent updates.

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Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-23806, CVE-2022-23772, and CVE-2022-23773 vulnerabilities.

Changed

Minor UI improvements.

Fixed

Optimistic cache now responds with expired items even if those can't be resolved again #4254.

Unnecessarily complex hosts-related logic leading to infinite recursion in some cases #4216.

This version contains bug fixes and cleanups 🧹. Also, there is a new minor feature: now you can rewrite responses for domains using the response code NOERROR. Similar rules will allow to get a successful response without records, e.g.:

|example.com^$dnsrewrite=NOERROR

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Added

Support for a $dnsrewrite modifier with an empty NOERROR response #4133.

Fixed

Wrong set of ports checked for duplicates during the initial setup #4095.

Incorrectly invalidated service domains #4120.

Poor testing of domain-specific upstream servers #4074.

Omitted aliases of hosts specified by another line within the OS's hosts file #4079.

You know, it is very hard to break your bad habits. We're still struggling with one, the overwhelming need to roll out hotfixes to AdGuard Home releases 😢

Now this one is a hotfix release for a really critical CPU overconsumption bug in v0.107.1.

Please update asap and with this, we wish you happy holidays!🎄

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Fixed

Infinite loops when TCP connections time out (#4042).

In a not-futile-at-all-we-swear 😅 attempt to fix all bugs before the New Year we're rolling out a hotfix to the recent v0.107.0. Hopefully, this time we got it all right. And if not, there are still a couple of sheets left on the calendar 📆 and the mug is still half-full with lukewarm coffee ☕

Acknowledgements

A special thanks to our open-source contributors: @Aikatsui and @mdawsonuk, as well as to everyone who filed and inspected issues, added translations, and helped us test this release!

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Changed

The validation error message for duplicated allow- and blocklists in DNS settings now shows the duplicated elements (#3975).

Fixed

ipset initialization bugs (#4027).

Legacy DNS rewrites from a wildcard pattern to a subdomain (#4016).

Service not being stopped before running the uninstall service action (#3868).

Broken reload service action on FreeBSD.

Legacy DNS rewrites responding from upstream when a request other than A or AAAA is received (#4008).

Panic on port availability check during installation (#3987).

Incorrect application of rules from the OS's hosts files (#3998).

We've had some big AdGuard Home updates in the past, but this one is to top them all. It's been brewing for almost eight months! 🙀 So no wonder there's heaps upon heaps of new features, improvements, bugfixes, and other changes. We'd better start listing them ASAP, or else we'll be risking missing the New Year's fireworks 🎆 🥂

Native Apple Silicon support

There's no shortage of killer features in this changelog, but this one takes the cake as the biggest of them all, without any doubt. You won't have to resort to Rosetta or any such solutions anymore if you want to configure AdGuard Home on a Mac with a Silicon chip.

RFC 9000 support In DNS-over-QUIC

It's not quite over nine thousand, but it'll do. The IETF has formalized QUIC this year with RFC 9000, and DNS-over-QUIC protocol finally supports it. If you haven't tried DoQ yet, consider this a sign.

`$dnsrewrite` rules and other DNS rewrites will now be applied even when protection is disabled (#1558)

Another popular demand. This change only makes sense, as DNS rewrites often carry a different purpose than simply blocking ads or trackers. You still can disable them by opening the admin panel, going to Settings → General settings, and removing the check mark from the Block domains using filters and hosts files box.

Note: rules contained in system hosts files (e.g. /etc/hosts) now have higher priority. This may result in more rewrites appearing in your Query log. If some of these rewrites are invalid, remove the corresponding lines from your hosts files or comment them out.

DNS-over-HTTPS queries now use the real IP address of the client instead of the address of the proxy (#2799)

Note that this change concerns only those proxies that you've added to the list of "Trusted proxies", otherwise it would be a major security risk. We wouldn't want anything of that sort to happen to you! 🙅‍♀️ Right now trusted_proxies can only be configured in AdGuardHome.yaml, but that might change in the future.

Optimistic DNS cache (#2145)

To reduce latency you may make AdGuard Home respond from the cache even when the stored entry is expired, while trying to refresh them at the same time🔄 This checkbox is located in Settings → DNS settings → DNS cache configuration and it's not ticked by default. Responses made from DNS cache are marked with a special label in the Query log.

Query log search now supports internationalized domains (#3012)

Internationalized domain names (IDNAs) are domain names that contain symbols in non-Latin script/alphabet, such as яндекс.рф or ουτοπία.δπθ.gr, for example. Previously, they were being converted to Unicode in AG Home Query log (xn--d1abqjx3f.xn--p1ai and xn--kxae4bafwg.xn--pxaix.gr in our examples), which is a detriment in most cases. Now IDNAs are displayed as is, and you can search for them without resorting to Unicode.

Acknowledgements

A special thanks to our open-source contributors: @Aikatsui, @anbraten, @bruvv, @DandelionSprout, @fvdm, @hnefatl, @markhicken, @p27877, and @systemcrash, as well as to everyone who filed and inspected issues, added translations, and helped us test this release! 🙏

Full Changelog

Added

Upstream server information for responses from cache (#3772). Note that old log entries concerning cached responses won't include that information.

Finnish and Ukrainian translations.

Setting the timeout for IP address pinging in the "Fastest IP address" mode through the new fastest_timeout field in the configuration file (#1992).

Static IP address detection on FreeBSD (#3289).

Optimistic cache (#2145).

New possible value of 6h for querylog_interval setting (#2504).

Blocking access using client IDs (#2624, #3162).

source directives support in /etc/network/interfaces on Linux (#3257).

RFC 9000 support in DNS-over-QUIC.

Completely disabling statistics by setting the statistics interval to zero (#2141).

The ability to completely purge DHCP leases (#1691).

Settable timeouts for querying the upstream servers (#2280).

Configuration file parameters to change group and user ID on startup on Unix (#2763).

Experimental OpenBSD support for AMD64 and 64-bit ARM CPUs (#2439, #3225, #3226).

Support for custom port in DNS-over-HTTPS profiles for Apple's devices (#3172).

darwin/arm64 support (#2443).

freebsd/arm64 support (#2441).

Output of the default addresses of the upstreams used for resolving PTRs for private addresses (#3136).

Detection and handling of recurrent PTR requests for locally-served addresses (#3185).

The ability to completely disable reverse DNS resolving of IPs from locally-served networks (#3184).

New flag --local-frontend to serve dynamically changeable frontend files from disk as opposed to the ones that were compiled into the binary.

Changed

Port bindings are now checked for uniqueness (#3835).

The DNSSEC check now simply checks against the AD flag in the response (#3904).

Client objects in the configuration file are now sorted (#3933).

Responses from cache are now labeled (#3772).

Better error message for ED25519 private keys, which are not widely supported (#3737).

Cache now follows RFC more closely for negative answers (#3707).

$dnsrewrite rules and other DNS rewrites will now be applied even when the protection is disabled (#1558).

DHCP gateway address, subnet mask, IP address range, and leases validations (#3529).

The systemd service script will now create the /var/log directory when it doesn't exist (#3579).

Items in allowed clients, disallowed clients, and blocked hosts lists are now required to be unique (#3419).

The TLS private key previously saved as a string isn't shown in API responses anymore (#1898).

Better OpenWrt detection (#3435).

DNS-over-HTTPS queries that come from HTTP proxies in the trusted_proxies list now use the real IP address of the client instead of the address of the proxy (#2799).

Clients who are blocked by access settings now receive a REFUSED response when a protocol other than DNS-over-UDP and DNSCrypt is used.

querylog_interval setting is now formatted in hours.

Query log search now supports internationalized domains (#3012).

Internationalized domains are now shown decoded in the query log with the original encoded version shown in request details (#3013).

When /etc/hosts-type rules have several IPs for one host, all IPs are now returned instead of only the first one (#1381).

The setting rlimit_nofile is now in the os block of the configuration file, together with the new group and user settings (#2763).

Permissions on filter files are now 0o644 instead of 0o600 (#3198).

Configuration Changes

In this release, the schema version has changed from 10 to 12.

Parameter dns.querylog_interval, which in schema versions 11 and earlier used to be an integer number of days, is now a string with a human-readable duration:

# BEFORE:
'dns':
  # …
  'querylog_interval': 90

# AFTER:
'dns':
  # …
  'querylog_interval': '2160h'

To rollback this change, convert the parameter back into days and change the schema_version back to 11.

Parameter rlimit_nofile, which in schema versions 10 and earlier used to be on the top level, is now moved to the new os object:

# BEFORE:
'rlimit_nofile': 42

# AFTER:
'os':
  'group': ''
  'rlimit_nofile': 42
  'user': ''

To rollback this change, move the parameter on the top level and change the schema_version back to 10.

Deprecated

Go 1.16 support. v0.108.0 will require at least Go 1.17 to build.

Fixed

EDNS0 TCP keepalive option handling (#3778).

Rules with the $denyallow modifier applying to IP addresses when they shouldn't (#3175).

The length of the EDNS0 client subnet option appearing too long for some upstream servers (#3887).

Invalid redirection to the HTTPS web interface after saving enabled encryption settings (#3558).

Incomplete propagation of the client's IP anonymization setting to the statistics (#3890).

Incorrect $dnsrewrite results for entries from the operating system's hosts file (#3815).

Matching against rules with | at the end of the domain name (#3371).

Incorrect assignment of explicitly configured DHCP options (#3744).

Occasional panic during shutdown (#3655).

Addition of IPs into only one as opposed to all matching ipsets on Linux (#3638).

Removal of temporary filter files (#3567).

Panic when an upstream server responds with an empty question section (#3551).

9GAG blocking (#3564).

DHCP now follows RFCs more closely when it comes to response sending and option selection (#3443, #3538).

Occasional panics when reading old statistics databases (#3506).

reload service action on macOS and FreeBSD (#3457).

Inaccurate using of service actions in the installation script (#3450).

Client ID checking (#3437).

Discovering other DHCP servers on darwin and freebsd (#3417).

Switching listening address to unspecified one when bound to a single specified IPv4 address on Darwin (macOS) (#2807).

Incomplete HTTP response for static IP address.

DNSCrypt queries weren't appearing in query log (#3372).

Wrong IP address for proxied DNS-over-HTTPS queries (#2799).

Domain name letter case mismatches in DNS rewrites (#3351).

Conflicts between IPv4 and IPv6 DNS rewrites (#3343).

Letter case mismatches in CNAME filtering (#3335).

Occasional breakages on network errors with DNS-over-HTTP upstreams (#3217).

Errors when setting static IP on Linux (#3257).

Treatment of domain names and FQDNs in custom rules with $dnsrewrite that use the PTR type (#3256).

Redundant hostname generating while loading static leases with empty hostname (#3166).

Domain name case in responses (#3194).

Custom upstreams selection for clients with client IDs in DNS-over-TLS and DNS-over-HTTP (#3186).

Incorrect client-based filtering applying logic (#2875).

Removed

Go 1.15 support.

More! More bugfixes! 🧟‍♀️

But this time, for a change, there's a couple of new minor features to go with them. Hope you don't mind 🤷‍♂️

A special thanks to our open-source contributor, @ashishwt, as well as to everyone who filed and inspected issues, added translations, and helped us to test this release!

Added

Support for reinstall (-r) and uninstall (-u) flags in the installation script #2462.

Support for DHCP DECLINE and RELEASE message types #3053.

Changed

Add microseconds to log output.

Fixed

Intermittent "Warning: ID mismatch" errors #3087.

Error when using installation script on some ARMv7 devices #2542.

DHCP leases validation #3107, #3127.

Local PTR request recursion in Docker containers #3064.

Ignoring client-specific filtering settings when filtering is disabled in general settings #2875.

Disallowed domains are now case-insensitive #3115.

Other minor fixes and improvements.

It's not Friday? Not a problem! We defy the tradition of Friday hotfixes by rushing another one out a day earlier 🙌

A special thanks to our open-source contributor, @jankais3r, as well as to everyone who filed issues, added translations, and helped us to test this release!

Fixed

Uniqueness validation for dynamic DHCP leases #3056.

Various other issues #3075, #3077.

We had a release a couple days ago. You all knew it would come to this. 🦸

It's Friday.

It's hotfix time! 🔥

Nothing serious though, we didn't even break anything. Just cleaning up some minor bugs. 🧹

Fixed

Local domain name handling when the DHCP server is disabled #3028.

Normalization of perviously-saved invalid static DHCP leases #3027.

Validation of IPv6 addresses with zones in system resolvers #3022.

Quite a lot of changes this time around, even if there aren't as many standouts as in some of the previous updates. We're sure that you'll be able to find a line or two in the changelog that speaks to you!

And one of the reasons for that is the constant support from the community. 👥👥 Special thanks to our open-source contributors: @jvoisin and @Paraphraser, as well as to everyone who filed issues, added translations, and helped us to test this release! 🙇

The ability to set up custom upstreams to resolve PTR queries for local addresses and to disable the automatic resolving of clients' addresses #2704

This option will improve your DNS privacy when it comes to addressing local resources. Give it a go unless you want to share your private data with googles of the world.

Search by clients' names in the query log #1273

There's not much that can be said about this feature, it's quite self-explanatory: now you can search up queries by specific clients. 🤷‍♀️

However, we wanted to highlight it anyway since so many of you have asked for it for quite a while. Hopefully, we delivered! 😅

Added

The ability to block user for login after configurable number of unsuccessful attempts for configurable time #2826.

$denyallow modifier for filters #2923.

Hostname uniqueness validation in the DHCP server #2952.

Hostname generating for DHCP clients which don't provide their own #2723.

New flag --no-etc-hosts to disable client domain name lookups in the operating system's /etc/hosts files #1947.

Logging of the client's IP address after failed login attempts #2824.

Verbose version output with -v --version #2416.

The ability to set a custom TLD or domain name for known hosts in the local network #2393, #2961.

The ability to serve DNS queries on multiple hosts and interfaces #1401.

ips and text DHCP server options #2385.

SRV records support in $dnsrewrite filters #2533.

Changed

Our DoQ implementation is now updated to conform to the latest standard draft #2843.

Quality of logging #2954.

Normalization of hostnames sent by DHCP clients #2945, #2952.

The access to the private hosts is now forbidden for users from external networks #2889.

The reverse lookup for local addresses is now performed via local resolvers #2704.

Stricter validation of the IP addresses of static leases in the DHCP server with regards to the netmask #2838.

Stricter validation of $dnsrewrite filter modifier parameters #2498.

New, more correct versioning scheme #2412.

Deprecated

Go 1.15 support. v0.107.0 will require at least Go 1.16 to build.

Fixed

Multiple answers for $dnsrewrite rule matching requests with repeating patterns in it #2981.

Root server resolving when custom upstreams for hosts are specified #2994.

Inconsistent resolving of DHCP clients when the DHCP server is disabled #2934.

Comment handling in clients' custom upstreams #2947.

Overwriting of DHCPv4 options when using the HTTP API #2927.

Assumption that MAC addresses always have the length of 6 octets #2828.

Support for more than one /24 subnet in DHCP #2541.

Invalid filenames in the mobileconfig API responses #2835.

Removed

Go 1.14 support.

There are big flashy updates, and there are seemingly unassuming ones, which constitute, however, the backbone of any successful project. This is the latter, as you may have guessed. You'll find here a heap of bugfixes and a security update for CVE-2021-27935.

Security

Session token doesn't contain user's information anymore (#2470).

Fixed

Incomplete hostnames with trailing zero-bytes handling (#2582).

Wrong DNS-over-TLS ALPN configuration (#2681).

Inconsistent responses for messages with EDNS0 and AD when DNS caching is enabled (#2600).

Incomplete OpenWrt detection (#2757).

DHCP lease's expired field incorrect time format (#2692).

Incomplete DNS upstreams validation (#2674).

Wrong parsing of DHCP options of the ip type (#2688).

Have you ever thought about why traditions are so important?🧙‍♂️ Traditions help us remember that we are part of a history that defines our past, shapes who we are today, and who we are likely to become. This is why we at AdGuard respect our traditions, and the most important one is pushing the inevitable hotfix right after every major update.🔥🔧

Jokes aside, here's the list of things fixed and improved in this hotfix.

Changed

Increased HTTP API timeouts (#2671, #2682).

"Permission denied" errors when checking if the machine has a static IP no longer prevent the DHCP server from starting (#2667).

The server name sent by clients of TLS APIs is not only checked when strict_sni_check is enabled (#2664).

HTTP API request body size limit for the POST /control/access/set and POST /control/filtering/set_rules HTTP APIs is increased (#2666, #2675).

Fixed

Error when enabling the DHCP server when AdGuard Home couldn't determine if the machine has a static IP.

Optical issue on custom rules (#2641).

Occasional crashes during startup.

The field "range_start" in the GET /control/dhcp/status HTTP API response is now correctly named again (#2678).

DHCPv6 server's ra_slaac_only and ra_allow_slaac settings aren't reset to false on update any more (#2653).

The Vary header is now added along with Access-Control-Allow-Origin to prevent cache-related and other issues in browsers (#2658).

The request body size limit is now set for HTTPS requests as well.

Incorrect version tag in the Docker release (#2663).

DNSCrypt queries weren't marked as such in logs (#2662).

We took our sweet time with this update, but you'll most certainly find it to be worth the wait. The changelog contains three absolute 💥bangers and a laundry list of lesser changes.

🕵️‍♂️ Client ID support for DNS-over-HTTPS, DNS-over-QUIC, and DNS-over-TLS #1387

This feature would be really useful to those of you who run an encrypted DNS resolver on a public server. In short, you can now identify your devices not just by their IP address (which is, frankly, not too useful in a public server scenario 🤷‍♀️), but by using a special "Client ID".

Here's how it works:

First, you add a client and specify an arbitrary string as its "Identifier", for instance, my-iphone.

On the client device you can now configure:

DNS-over-HTTPS: https://example.org/dns-query/my-iphone

DNS-over-TLS: tls://my-iphone.example.org (requires a Wildcard certificate)

DNS-over-QUIC: quic://my-iphone.example.org (requires a Wildcard certificate)

Queries and stats are now properly attributed to your device.

🔐 AdGuard as a DNSCrypt-resolver #1361

DNSCrypt was the very first DNS encryption protocol that got some traction. It may not be as popular as DoH/DoT/DoQ now, but it is still viable. Moreover, performance-wise DNSCrypt is better than any of them. And now that v0.105.0 is out, AdGuard Home can be configured to work as a DNSCrypt resolver!

However, here goes the tricky part. We haven't yet exposed these settings to the Web admin panel so if you want to have DNSCrypt, you'll need to follow this instruction and do it via editing the configuration file (AdGuardHome.yaml). Not that it would scare you off, would it? 🤓

Regarding DNSCrypt clients - AdGuard for Android, Windows and iOS support it, Mac will get its support pretty soon. Besides that, here is a long list of client software that supports it as well.

🆎 `$dnsrewrite` and `$dnstype` modifiers #2102 #2337

AdGuard Home now supports two more powerful rule modifiers that will help blocklists' maintainers.

$dnstype lets you narrow down the rule scope and apply it only to queries of a specific type(s). For instance, Apple devices now support HTTPS DNS query type. While being generally a good thing, this new type may sometimes be harmful😲. By using $dnstype you can block it completely using a simple rule like this: $dnstype=HTTPS

$dnsrewrite is another powerful modifier that allows you to modify DNS responses. Note that this modifier is much more powerful compared to something like a hosts file.

Here are some examples:

||example.org^$dnsrewrite=SERVFAIL;; - return SERVFAIL for example.org and all it's subdomains

|test.example.org^$dnsrewrite=NOERROR;TXT;hello_world - add a TXT record for test.example.org

|example.org^$dnsrewrite=example.com - redirect example.org to example.com

|example.org^$dnsrewrite=1.1.1.1 - redirect example.org to example.com

You can find more examples in the documentation.

Added

Added more services to the "Blocked services" list #2224, #2401

ipset subdomain matching, just like dnsmasq does #2179

The host checking API and the query logs API can now return multiple matched rules #2102

Detecting of network interface configured to have static IP address via /etc/network/interfaces #2302

A 5 second wait period until a DHCP server's network interface gets an IP address #2304

HTTP API request body size limit #2305

Changed

Access-Control-Allow-Origin is now only set to the same origin as the domain, but with an HTTP scheme as opposed to * #2484

workDir now supports symlinks.

Stopped mounting together the directories /opt/adguardhome/conf and /opt/adguardhome/work in our Docker images #2589

When dns.bogus_nxdomain option is used, the server will now transform responses if there is at least one bogus address instead of all of them #2394. The new behavior is the same as in dnsmasq.

Post-updating relaunch possibility is now determined OS-dependently #2231, #2391

Made the mobileconfig HTTP API more robust and predictable, add parameters and improve error response #2358

Improved HTTP requests handling and timeouts #2343

Our snap package now uses the core20 image as its base #2306

New build system and various internal improvements #2271, #2276, #2297, #2509, #2552, #2639, #2646

Deprecated

Go 1.14 support. v0.106.0 will require at least Go 1.15 to build.

The darwin/386 port. It will be removed in v0.106.0.

The "rule" and "filter_id" fields in GET /filtering/check_host and GET /querylog responses. They will be removed in v0.106.0 #2102

Fixed

Autoupdate bug in the Darwin (macOS) version #2630

Unnecessary conversions from string to net.IP, and vice versa #2508

Inability to set DNS cache TTL limits #2459

Possible freezes on slower machines #2225

A mitigation against records being shown in the wrong order on the query log page #2293

A JSON parsing error in query log #2345

Incorrect detection of the IPv6 address of an interface as well as another infinite loop in the /dhcp/find_active_dhcp HTTP API #2355

Removed

The undocumented ability to use hostnames as any of bind_host values in the configuration. Documentation requires them to be valid IP addresses, and now the implementation makes sure that that is the case #2508

Dockerfile #2276. Replaced with the script scripts/make/build-docker.sh which uses scripts/make/Dockerfile.

Support for pre-v0.99.3 format of query logs #2102

Bugfixes... 😌 There's something about them that we just can't resist. We always want more! 🧟

When there's nothing more to fix, we just roll out a new major update, introduce some fresh bugs and start all over. It's a circle of life ☯️

Luckily, there are still some to prey upon in v0.104. Have a look at what we've fixed this time:

Fixed

Don't expose the profiler HTTP API #2336

Load query logs from files after loading the ones buffered in memory #2325

Don't show Unnecessary errors in logs when switching between query log files #2324

Don't show 404 Not Found errors on the DHCP settings page on Windows. Show that DHCP is not currently available on that OS instead #2295

Fix an infinite loop in the /dhcp/find_active_dhcp HTTP API method #2301

Various internal improvements

Those who pay close attention to AdGuard Home releases know that we keep hotfixes close to our hearts 🔥♥️ This time we held for as long as we could, but ultimately gave in to the urge 😔

Here's a patch to v0.104 with some fixes and minor improvements.

Fixed

Solve the permission denied error when launching a DHCP server on Linux using Snap #2228. Users experiencing this issue should refresh their snap and call:

snap connect adguard-home:network-control

This won't be required in the future versions.

Use matching fonts in the Custom Filters textarea #2254

Show the correct query type for DNS-over-QUIC queries in query log #2241

Increase the default number of simultaneous requests to improve performance #2257

Always set a secondary DNS in DHCP #1708

Improve stability on DNS proxy restart #2242

Improve logging on DNS proxy restart #2252

Don't show a “Loading” message and don't rerequest logs once we've reached the end of logs on the query log page #2229

Various internal improvements.

We have something special for y'all today. Not just an implementation of a new feature but the first ever implementation of a new feature! 😮 This is about DNS-over-QUIC, a new DNS encryption protocol — read on to learn more.

Ah, yes, there's also a bunch of other good stuff, too: DHCP-related changes, a .mobileconfig generator for iOS and macOS, and a handful of other enhancements and bugfixes.

DNS-over-QUIC support #2049

AdGuard Home now natively supports a new DNS encryption protocol called DNS-over-QUIC. DoQ standard is currently in the draft state, and AdGuard Home (and dnsproxy) is it's first open-source implementation.🥇

So what's good about it? 🤔 Unlike DoH and DoT, it uses QUIC as a transport protocol and finally brings DNS back to its roots — working over UDP. It brings all the good things that QUIC has to offer — out-of-the-box encryption, reduced connection times, better performance when data packets are lost. Also, QUIC is supposed to be a transport-level protocol and there are no risks of metadata leaks that could happen with DoH. 🔒

At this moment, the only major public DNS resolver that provides DNS-over-QUIC is AdGuard DNS. 😎 Use quic://dns-unfiltered.adguard.com in the upstreams settings to start using AdGuard DNS "Non-Filtering".

DHCP rework: DHCP6 support, custom DHCP options

We did a huge rework of our DHCP server implementation. Thanks to it, AdGuard Home now supports DHCP6 and allows setting custom DHCP options.

Please note that in order to set DHCP options, you'll need to edit the configuration file.

Add support for DHCPv6: #779

DHCPv6 RA+SLAAC: #2076

DHCP: automatic hostnames: #1956

Add DHCP Options: #1585

iOS and MacOS .mobileconfig generator: #2110

iOS 14 and macOS Big Sur natively support DNS-over-HTTPS and DNS-over-TLS. However, it's not that simple to configure them — you need to install a special "configuration profile" for that. 🤯 In order to make things easier, AdGuard Home can generate these configuration profiles for you. Just head to "Setup Guide" -> "DNS Privacy" and scroll to iOS.

Binary transparency

AdGuard Home binaries are now signed with our GPG key and you can now easily verify that they really come from us: https://github.com/AdguardTeam/AdGuardHome/wiki/Verify-Releases

Other improvements

Allow entering comments to the Upstreams box: #2083

Load upstreams list from a file: #1680

Add ARMv8 to future releases, potentially append a v8 binary to the most recent non-beta release: #2125

Redesign query logs block/unblock buttons: #2050

Treat entries starting with "/" as "://" under specific circumstances: #1950

Use "Null IP" instead of NXDOMAIN by default: #1914

Bootstrap with TCP upstreams: #1843

Add block and unblock buttons to 'check the filtering' result: #1734

ipset feature support: #1191

Add Belarusian and Chinese Traditional HK languages: #2106

Add new language: en-silk: #1796

Use DOH or DOT as bootstrap: #960

Fixed

Reverse lookups return empty answers for hosts from /etc/hosts: #2085

Static lease hostnames are overridden by client-identifier: #2040

Query log doesn't display name for blocked services: #2038

Custom filter editor works with delay: #1657

Incorrect link address: #2209

Smartphone compatible design for user interface: #2152

Misleading information during service installation: #2128

Remove the limit on cache-min-ttl, 3600: #2094

Cannot change minimum TTL override in UI: #2091

Optical Issue on mobile phone: #2090

Setting a large DNS Cache Size in the Web GUI will exceed the unit32 range.: #2056

Clients requests aren't counted properly: #2037

Publish privacy policy on front page (README.md): #1960

Sorting various IP Address Columns in the UI (eg in dhcp static leases) does not sort correctly. They are treated as strings instead of numeric.: #1877

Requests count for clients with CIDR IP addresses: #1824

Home Release - AdGuard versions

Global protection pause

Better Safe Search controls

Full Changelog

Security

Full Changelog

Security

As an additional CSRF protection measure, AdGuard Home now ensures that requests that change its state but have no body (such as POST /control/stats_reset requests) do not have a Content-Type header set on them #4970.

Added

Upstreams with forced DNS-over-HTTP/3 and no fallback to prior HTTP versions using the h3:// scheme.

Fixed

Full Changelog

Security

Other Security Changes

Weaker cipher suites that use the CBC (cipher block chaining) mode of operation have been disabled #2993.

Added

Support for plain (unencrypted) HTTP/2 #4930. This is useful for AdGuard Home installations behind a reverse proxy.

Fixed

Full Changelog

Added

Changed

Fixed

Full Changelog

Security

Added

Changed

Deprecated

Go 1.18 support. Future versions will require at least Go 1.19 to build.

Fixed

Full Changelog

Added

Bilibili service blocking #4795.

Changed

DNS-over-QUIC connections now use keepalive.

Fixed

Full Changelog

Added

Support for Discovery of Designated Resolvers (DDR) according to the RFC draft #4463.

Changed

Our snap package now uses the core22 image as its base #4843.

Fixed

Full Changelog

Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-32189 Go vulnerability fixed in Go 1.18.5. Go 1.17 support has also been removed, as it has reached end of life and will not receive security updates.

Added

windows/arm64 support #3057.

Changed

UI and update links have been changed to make them more resistant to DNS blocking.

Fixed

Several UI issues #4775, #4776, #4782.

Removed

Full Changelog

Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-1705, CVE-2022-32148, CVE-2022-30631, and other Go vulnerabilities fixed in Go 1.17.12.

Fixed

DNS-over-QUIC: RFC 9250

More Control Over Upstreams

Other Notable Changes

Acknowledgements

Full Changelog

Security

Added

Changed

Configuration Changes

Deprecated

Fixed

Full Changelog

Security

Go version was updated to prevent the possibility of exploiting the CVE-2022-24675, CVE-2022-27536, and CVE-2022-28327 vulnerabilities.

Added

Support for SVCB/HTTPS parameter dohpath in filtering rules with the dnsrewrite modifier according to the RFC draft #4463.

Changed

Filtering rules with the dnsrewrite modifier that create SVCB or HTTPS responses should use ech instead of echconfig to conform with the latest drafts.

Deprecated

Obsolete --no-mem-optimization option #4437. v0.109.0 will remove the flag completely.

Fixed

Rules for blocking the QQ service #3717.

Removed

Full Changelog

Security

As an additional CSRF protection measure, AdGuard Home now ensures that requests that change its state but have no body (such as `POST /control/stats_reset` requests) do not have a `Content-Type` header set on them #4970.

Upstreams with forced DNS-over-HTTP/3 and no fallback to prior HTTP versions using the `h3://` scheme.

Our snap package now uses the `core22` image as its base #4843.

`windows/arm64` support #3057.

Go version was updated to prevent the possibility of exploiting the `CVE-2022-1705`, `CVE-2022-32148`, `CVE-2022-30631`, and other Go vulnerabilities fixed in Go 1.17.12.

Support for SVCB/HTTPS parameter `dohpath` in filtering rules with the `dnsrewrite` modifier according to the RFC draft #4463.

Filtering rules with the `dnsrewrite` modifier that create SVCB or HTTPS responses should use `ech` instead of `echconfig` to conform with the latest drafts.

Obsolete `--no-mem-optimization` option #4437. v0.109.0 will remove the flag completely.

`$dnsrewrite` rules and other DNS rewrites will now be applied even when protection is disabled (#1558)

🆎 `$dnsrewrite` and `$dnstype` modifiers #2102 #2337