# Kea 2.0.2, March 2nd 2022, Release Notes Welcome to Kea 2.0.2, a maintenance release of the stable 2.0 branch. Kea is a DHCP implementation developed by Internet Systems Consortium (ISC) that features DHCPv4 and DHCPv6 servers with DNS update and a RESTful 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, runtime configuration monitoring and updates via a RESTful 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. If you are upgrading from the previous stable version, the following deficiencies have been addressed since Kea 2.0.1: 1. **Flex-id bugfix**: Fixed race condition on initialization of the `flex_id_expr` member when using multi-threading in the Flexible Identifiers hook library [2270]. 2. **Literal IPv6 address in HA**: The Kea configuration for a High Availability (HA) peer now accepts an IPv6 address as a valid value for the `url` entry [#2302]. 3. **Config Backend and client class options**: Kea core logic now ensures options belonging to client classes are properly created when classes are read from configuration backends [#2301]. 4. **CentOS 8 packages retired**: Since CentOS 8 has reached end-of-life and its repositories are no longer available, ISC can no longer generate packages for CentOS 8. Users of CentOS 8 should upgrade, use a different distribution, or compile Kea from sources. Using any system past its EOL date is highly discouraged. ## 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 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 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 in HTML, plain text, or PDF formats. ISC maintains a public open source code tree, wiki, issue tracking system, milestone planner, and roadmap at https://gitlab.isc.org//isc-projects/kea. 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. If you have any comments or questions about working with Kea, please share them to the Kea Users list (https://lists.isc.org/mailman/listinfo/kea-users). Bugs and feature requests may be submitted via GitLab at https://gitlab.isc.org/isc-projects/kea/issues. ## Changes The following summarizes changes and important upgrade notes since the 2.0.1 release. ``` 1957. [build] razvan Library version numbers bumped for Kea 2.0.2 stable version. (Gitlab #2327) 1956. [bug] tmark Kea core logic now ensures options belonging to client classes are properly created when classes are read from configuration backends. (Gitlab #2301) 1955. [bug] andrei The config for an HA peer now accepts an IPv6 address as a valid value for the "url" entry. (Gitlab #2302) ``` The following summarizes changes in the premium hooks since the 2.0.1 release: ``` 128. [bug] razvan Fixed race condition on initialization of flex_id_expr member when using multi-threading in flex id hook library. (Gitlab #2270) ``` Thank you again to everyone who assisted us in making this release possible. We look forward to receiving your feedback.