Require Amaranth 0.4.

Author: whitequark

.github/workflows/main.yml

@@ -1,6 +1,7 @@
 on:
   push:
   pull_request:
+  merge_group:
   schedule:
   - cron: '0 0 * * *' # test daily against git HEAD of dependencies
 
@@ -15,6 +16,7 @@ jobs:
         - '3.8'
         # this version range needs to be synchronized with the one in pyproject.toml
         amaranth-version:
+        - '0.4'
         - 'git'
       fail-fast: false
     steps:

pyproject.toml

@@ -14,7 +14,7 @@ license = {file = "LICENSE.txt"}
 requires-python = "~=3.8"
 dependencies = [
   # this version requirement needs to be synchronized with the one in .github/workflows/main.yml
-  "amaranth@git+https://github.com/amaranth-lang/amaranth",
+  "amaranth>=0.4,<0.5",
 ]
 
 [project.urls]