Set Erlang/OTP 26 as minimum supported version

Erlang/OTP 28 was released in May 2025, so bump the minimum supported Erlang version too.

Author: big-r81

build-aux/Jenkinsfile.full

@@ -18,7 +18,7 @@ ERLANG_VERSION = '26.2.5.11'
 
 // Erlang version used for rebar in release process. CouchDB will not build from
 // the release tarball on Erlang versions older than this
-MINIMUM_ERLANG_VERSION = '25.3.2.20'
+MINIMUM_ERLANG_VERSION = '26.2.5.11'
 
 // We create parallel build / test / package stages for each OS using the metadata
 // in this map. Adding a new OS should ideally only involve adding a new entry here.

build-aux/Jenkinsfile.pr

@@ -50,7 +50,7 @@ pipeline {
     // Search for ERLANG_VERSION
     // see https://issues.jenkins.io/browse/JENKINS-61047 for why this cannot
     // be done parametrically
-    LOW_ERLANG_VER = '25.3.2.20'
+    LOW_ERLANG_VER = '26.2.5.11'
   }
 
   options {
@@ -247,7 +247,7 @@ pipeline {
         axes {
           axis {
             name 'ERLANG_VERSION'
-            values '25.3.2.20', '26.2.5.11', '27.3.3'
+            values '26.2.5.11', '27.3.3', '28.0'
           }
           axis {
             name 'SM_VSN'

rebar.config.script

@@ -191,7 +191,7 @@ end.
 AddConfig = [
     {cover_enabled, true},
     {cover_print_enabled, true},
-    {require_otp_vsn, "25|26|27|28"},
+    {require_otp_vsn, "26|27|28"},
     {deps_dir, "src"},
     {deps, lists:map(MakeDep, DepDescs ++ OptionalDeps)},
     {sub_dirs, SubDirs},

src/docs/src/install/unix.rst

@@ -157,7 +157,7 @@ Dependencies
 
 You should have the following installed:
 
-* `Erlang OTP (25, 26, 27)      <http://erlang.org/>`_
+* `Erlang OTP (26, 27, 28)      <http://erlang.org/>`_
 * `ICU                          <http://icu-project.org/>`_
 * `OpenSSL                      <http://www.openssl.org/>`_
 * `Mozilla SpiderMonkey (1.8.5, 60, 68, 78, 91, 102, 115, 128) <https://spidermonkey.dev/>`_