drop support for Coq 8.8

.gitlab-ci.yml

@@ -53,11 +53,6 @@ build-coq.8.9.1:
   variables:
     OPAM_PINS: "coq version 8.9.1"
 
-build-coq.8.8.2:
-  <<: *template
-  variables:
-    OPAM_PINS: "coq version 8.8.2"
-
 # Nightly job with a known-to-work Coq version
 build-stdpp.dev-coq.8.11.0:
   <<: *template

README.md

@@ -18,13 +18,11 @@ definitions and some derived forms is available in
 
 This version is known to compile with:
 
- - Coq 8.8.2 / 8.9.1 / 8.10.2 / 8.11.0
+ - Coq 8.9.1 / 8.10.2 / 8.11.0
  - A development version of [std++](https://gitlab.mpi-sws.org/iris/stdpp)
 
-For a version compatible with Coq 8.6, have a look at the
-[iris-3.1 branch](https://gitlab.mpi-sws.org/iris/iris/tree/iris-3.1).
-If you need to work with Coq 8.5, please check out the
-[iris-3.0 branch](https://gitlab.mpi-sws.org/iris/iris/tree/iris-3.0).
+If you need to work with Coq 8.7 or Coq 8.8, please check out the
+[iris-3.2 branch](https://gitlab.mpi-sws.org/iris/iris/tree/iris-3.2).
 
 ### Working *with* Iris
 

_CoqProject

@@ -8,7 +8,7 @@
 -arg -w -arg -convert_concl_no_check
 # "Declare Scope" does not exist yet in 8.9.
 -arg -w -arg -undeclared-scope
-# We have ambiguous paths and so far it is not even clear what they are (https://gitlab.mpi-sws.org/iris/iris/issues/240).
+# We have ambiguous paths, and live with it.
 -arg -w -arg -ambiguous-paths
 
 theories/algebra/monoid.v

opam

@@ -10,7 +10,7 @@ dev-repo: "git+https://gitlab.mpi-sws.org/iris/iris.git"
 synopsis: "This is the Coq development of the Iris Project"
 
 depends: [
-  "coq" { (= "8.8.2") | (>= "8.9.1" & < "8.12~") | (= "dev") }
+  "coq" { (>= "8.9.1" & < "8.12~") | (= "dev") }
   "coq-stdpp" { (= "dev.2020-02-24.1.7d705c84") | (= "dev") }
 ]