Merge branch 'ralf/drop-8.15' into 'master'

drop support for Coq 8.15

See merge request !508

.gitlab-ci.yml

@@ -74,16 +74,9 @@ build-coq.8.17.1:
     DENY_WARNINGS: "1"
     MANGLE_NAMES: "1"
 
+# The oldest version runs in MRs, without name mangling.
 build-coq.8.16.1:
   <<: *template
   variables:
     OPAM_PINS: "coq version 8.16.1"
     DENY_WARNINGS: "1"
-
-# The oldest version runs in MRs, without name mangling.
-build-coq.8.15.2:
-  <<: *template
-  <<: *branches_and_mr
-  variables:
-    OPAM_PINS: "coq version 8.15.2"
-    DENY_WARNINGS: "1"

CHANGELOG.md

@@ -3,7 +3,7 @@ API-breaking change is listed.
 
 ## std++ master
 
-Coq 8.17 is newly supported by this release. Coq 8.12, 8.13 and 8.14 are no
+Coq 8.17 is newly supported by this release. Coq 8.12, 8.13, 8.14, and 8.15 are no
 longer supported by this release.
 
 - Rename `difference_difference` → `difference_difference_l` and

README.md

@@ -43,7 +43,7 @@ Notably:
 
 This version is known to compile with:
 
- - Coq version 8.15.2 / 8.16.1 / 8.17.1 / 8.18.0
+ - Coq version 8.16.1 / 8.17.1 / 8.18.0
 
 Generally we always aim to support the last two stable Coq releases. Support for
 older versions will be dropped when it is convenient.

coq-stdpp.opam

@@ -33,7 +33,7 @@ tags: [
 ]
 
 depends: [
-  "coq" { (>= "8.15" & < "8.19~") | (= "dev") }
+  "coq" { (>= "8.16" & < "8.19~") | (= "dev") }
 ]
 
 build: ["./make-package" "stdpp" "-j%{jobs}%"]