[Buildroot] [git commit branch/2020.02.x] docs/manual: new chapter on release engineering

Peter Korsgaard peter at korsgaard.com
Sun May 31 21:15:35 UTC 2020

commit: https://git.buildroot.net/buildroot/commit/?id=7d46d576ca75d0b20d8ac95332bc29eb6a1f982e
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2020.02.x

Describe release engineering and development phases of the project.

Signed-off-by: Joachim Nilsson <troglobit at gmail.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit de2b78143c4316c6a6a07d44d74298d307609dd2)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
 docs/manual/manual.txt              |  2 ++
 docs/manual/release-engineering.txt | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/docs/manual/manual.txt b/docs/manual/manual.txt
index b76ab40d40..48de65ee10 100644
--- a/docs/manual/manual.txt
+++ b/docs/manual/manual.txt
@@ -66,6 +66,8 @@ include::contribute.txt[]
 = Appendix
diff --git a/docs/manual/release-engineering.txt b/docs/manual/release-engineering.txt
new file mode 100644
index 0000000000..0cf38183f9
--- /dev/null
+++ b/docs/manual/release-engineering.txt
@@ -0,0 +1,34 @@
+// -*- mode:doc; -*-
+// vim: set syntax=asciidoc:
+== Release Engineering
+=== Releases
+The Buildroot project makes quarterly releases with monthly bugfix
+releases.  The first release of each year is a long term support
+release, LTS.
+ - Quarterly releases: 2020.02, 2020.05, 2020.08, and 2020.11
+ - Bugfix releases: 2020.02.1, 2020.02.2, ...
+ - LTS releases: 2020.02, 2021.02, ...
+Releases are supported until the first bugfix release of the next
+release, e.g., 2020.05.x is EOL when 2020.08.1 is released.
+LTS releases are supported until the first bugfix release of the next
+LTS, e.g., 2020.02.x is supported until 2021.02.1 is released.
+=== Development
+Each release cycle consist of two months of development on the +master+
+branch and one month stabilization before the release is made.  During
+this phase no new features are added to +master+, only bugfixes.
+The stabilization phase starts with tagging +-rc1+, and every week until
+the release, another release candidate is tagged.
+To handle new features and version bumps during the stabilization phase,
+a +next+ branch may be created for these features.  Once the current
+release has been made, the +next+ branch is merged into +master+ and
+the development cycle for the next release continues there.

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