[kea-announce] Kea 2.3.1, a new development release of Kea, is now available

[Peter Davies]

Internet Systems Consortium is pleased to announce the release of Kea 2.3.1.
Releases in the Kea 2.3.x sequence are part of the Kea 2.3 development
branch, where new features are provided for testing and evaluation
before the branch is designated stable and recommended for production use.
The current stable branch of Kea is Kea 2.2 and its most recent release
is 2.2.0
Kea source tarball are available from cloudsmith.io:
https://dl.cloudsmith.io/public/isc/kea-2-2/raw/versions/2.2.0/kea-2.2.0.tar.gz
https://dl.cloudsmith.io/public/isc/kea-2-3/raw/versions/2.3.1/kea-2.3.1.tar.gz
And from the ISC download page:
https://www.isc.org/download
---
# Kea 2.3.1, September 28 2022, Release Notes Welcome to Kea 2.3.1, the 
second monthly release of the 2.3 development series. As with any other 
development release, use this with caution: development releases are not 
recommended for production use. Kea is a DHCP implementation developed 
by Internet Systems Consortium (ISC) that features DHCPv4 and DHCPv6 
servers with DNS updating and a REST API; optional database support 
(MySQL and PostgreSQL); optional RADIUS, Kerberos, and YANG/NETCONF 
support; and much more. Kea provides extensive management capabilities, 
including but not limited to: TLS support, run-time configuration 
monitoring and updates via a REST API, host reservations, client 
classification, and more. The text below references issue numbers. For 
more details, visit the Kea GitLab page at 
https://gitlab.isc.org/isc-projects/kea/issues. This month the Kea team 
was focused on bug fixes and improving our build process. The following 
bugfixes and features have been implemented since the previous release, 
version 2.3.0: 1. **Bug fixes**: Fixed 32 bit compatibility issue with 
PostgreSQL time. [#2532] 2. **Lease Commands**: The lease_cmds hook 
library supports two new commands, `lease4-write` and `lease6-write`. 
These should help recovery in emergency situations e.g. when the disk is 
full, by writing the memory lease database into a CSV file. They are 
supported by the memfile backend only. The lease_cmds hook library 
returns a new "conflict" status code indicating an issue with a lease 
update due to a mismatch between the received lease and the server's 
configuration or state. The HA hook library differentiates between this 
new status and a general error and avoids transitioning to the 
partner-down state when conflicts occur. The new 
`max-rejected-lease-updates` parameter sets a limit for the maximum 
number of conflicts before the server terminates the HA 
service.[#1654][#2408] 3. **Bug fixes**: Enforce length limits on host 
identifier (20 bytes for hardware address, 128 bytes for DUID and other 
types). [#2557] 4. **Documentation**: Fixed broken example and 
documentation for long DHCPv4 options in the ARM. [#2545] 5. **Build 
improvements**: Improved build compatibility in Kea between g++ and 
Boost libraries. The compilation error that was fixed was reported to 
occur with g++ 8 and boost 1.75. [#2519] 6. **Logging improvements** If 
Kea fails to start because of an invalid configuration, now the log 
message about the configuration error will be saved in the logfile. 
[#1955] 7. **Packaging changes** Debian package names have changed: 
`isc-kea-dhcp4-server` was changed to `isc-kea-dhcp4`, 
`isc-kea-dhcp6-server` to `isc-kea-dhcp6`, and 
`isc-kea-dhcp-ddns-server` to `isc-kea-dhcp-ddns`. This change was 
required to use `dist-upgrade` to install new packages. All package 
types (rpm, deb and apk) now have the meta package `isc-kea` that 
contains all components making it easier to install, while retaining the 
flexibility to install individual packages separately. The Control Agent 
service is no longer started every time when dhcp4, dhcp6, or ddns is 
started, but when active it will start on system boot up. ## Notable 
Changes The lease_cmds hook library returns a new "conflict" status code 
(4) indicating an issue with a lease update due to a mismatch between 
the received lease and the server's configuration or state. ## 
Incompatible Changes Some `lease_cmds` return result code "4" with 
additional text description instead of code "1" in conflict errors. This 
could break some automation customers have that uses lease commands. ## 
License This version of Kea is released under the Mozilla Public 
License, version 2.0. https://www.mozilla.org/en-US/MPL/2.0 The premium 
and subscriber-only hook libraries are provided under the terms of an 
Kea Hooks Basic Commercial End User License Agreement. ## Download 
Pre-built ISC packages for current versions of the most popular Linux 
operating systems are available at: https://cloudsmith.io/\~isc/repos/ 
The Kea source and PGP signature for this release may be downloaded 
from: https://www.isc.org/download, as well as from the Cloudsmith 
repository. The signature was generated with the ISC code signing key, 
which is available at: https://www.isc.org/pgpkey ISC provides detailed 
documentation, including installation instructions and usage tutorials, 
in the Kea Administrator Reference Manual. Documentation is included 
with the installation or at 
https://kea.readthedocs.io/en/latest/index.html. Limitations and known 
issues with this release can be found at 
https://gitlab.isc.org/isc-projects/kea/wikis/known-issues-list. We ask 
users of this software to please let us know how it worked for you and 
what operating system you tested on. Feel free to share your feedback on 
the Kea Users mailing list 
(https://lists.isc.org/mailman/listinfo/kea-users. We would also like to 
hear whether the documentation is adequate and accurate. Please open 
tickets in the Kea GitLab project for bugs, documentation omissions and 
errors, and enhancement requests. We want to hear from you even if 
everything worked. ## Support Professional support for Kea is available 
from ISC. We encourage all professional users to consider this option; 
Kea maintenance is funded with support subscriptions. For more 
information on ISC's Kea and DHCP software support see 
https://www.isc.org/support/. Free best-effort support is provided by 
our user community via a mailing list. Information on all public email 
lists is available at https://www.isc.org/community/mailing-list. ## 
Changes The following summarizes changes and important upgrade notes 
since the 2.3.0 release for Kea core: 2064. [build] mgodzina The library 
version numbers have been bumped for the Kea 2.3.1 development release. 
(Gitlab #2576) 2063. [bug] fdupont Fixed 32 bit compatibility issue with 
PostgreSQL time. (Gitlab #2532) 2062. [func] fdupont The lease_cmds hook 
library supports two new commands "lease4-write" and "lease6-write" 
which should help to recover emergency situations e.g. full disk space 
by writing the memory lease database into a CSV file. They are supported 
only by the memfile backend. (Gitlab #1654) 2061. [bug]* fdupont Enforce 
length limits on host identifier (20 bytes for hardware address, 128 
bytes for DUID and other types). (Gitlab #2557) 2060. [build] andrei Two 
scripts that are used for checking YANG modules now automatically detect 
the location of the yanglint tool and its libraries based on the values 
passed to the configure script. "make check" should now pass 
uninterrupted on some delicate systems like Alpine and RPM-based. Also, 
reinstall.sh, used to install YANG modules, now detects sysrepoctl 
automatically. (Gitlab #2558) 2059. [func] marcin The lease_cmds hook 
library returns a new "conflict" status code indicating an issue with a 
lease update due to a mismatch between the received lease and the 
server's configuration or state. The HA hook library differentiates 
between this new status and a general error and avoids transitioning to 
the partner-down state when conflicts occur. The new 
"max-rejected-lease-updates" parameter sets a limit for the maximum 
number of conflicts before the server terminates the HA service. (Gitlab 
#2408) 2058. [build] fdupont kea-lfc is now built just after libraries. 
(Gitlab #2526) 2057. [doc] marcin Fixed broken example and documentation 
for long DHCPv4 options in the ARM. (Gitlab #2545) 2056. [build] andrei 
Improved build compatibility in Kea between g++ and Boost libraries. The 
compilation error that was fixed was reported to occur with g++ 8 and 
boost 1.75. The fix consists of passing callbacks directly to 
boost::asio::io_service::post and not indirectly through a functor. 
Thanks to rski for reporting the error and suggesting the fix! (Gitlab 
#2519) 2055. [func] andrei When Kea starts with an erroneous file 
configuration, if the logging is viable and is configured to log at 
least at ERROR level, it will log the errors according to the configured 
logging. Previously, it would log them in stderr which made gathering of 
the errors more difficult. A final log message is still logged at stderr 
just as before. (Gitlab #1955) And for Kea premium: 156. [bug] fdupont 
Reservation get commands no longer throw on host entries with too long 
host identifiers. (Gitlab #2557) See 
https://gitlab.isc.org/isc-projects/kea/-/wikis/Release-Notes for a 
complete list of release notes. Thank you again to everyone who assisted 
us in making this release possible. We look forward to receiving your 
feedback. --

Peter Davies
ISC Support

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