diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f4c304e7f57425355434106a785b66f0a724b18d..eefc66ace2ba2e15e2e3d4f4347d10246533e127 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,10 +45,10 @@ variables:
 ## Build jobs
 
 # The newest version runs with timing.
-build-coq.8.18.0:
+build-coq.8.19.0:
   <<: *template
   variables:
-    OPAM_PINS: "coq version 8.18.0"
+    OPAM_PINS: "coq version 8.19.0"
     DENY_WARNINGS: "1"
     MANGLE_NAMES: "1"
     CI_COQCHK: "1"
@@ -59,9 +59,16 @@ build-coq.8.18.0:
   interruptible: false
 
 # The newest version also runs in MRs, without timing.
-build-coq.8.18.0-mr:
+build-coq.8.19.0-mr:
   <<: *template
   <<: *only_mr
+  variables:
+    OPAM_PINS: "coq version 8.19.0"
+    DENY_WARNINGS: "1"
+    MANGLE_NAMES: "1"
+
+build-coq.8.18.0:
+  <<: *template
   variables:
     OPAM_PINS: "coq version 8.18.0"
     DENY_WARNINGS: "1"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd80ae597a82134a90adf445c1c5146db65217cc..d5e6f775519eccc650176025e7160d1bafff5d26 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@ API-breaking change is listed.
 
 ## std++ master
 
+Coq 8.19 is newly supported by this version of std++.
+
 - Add `TCSimpl` type class that is similar to `TCEq` but performs `simpl`
   before proving the goal by reflexivity.
 - Add new typeclass `MThrow E M` to generally represent throwing an error of
diff --git a/README.md b/README.md
index 8885a95136e3ece533e4b1006daf32c748beba21..4b4274008d59d2f854964500ecc73c893691ce18 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ Notably:
 
 This version is known to compile with:
 
- - Coq version 8.16.1 / 8.17.1 / 8.18.0
+ - Coq version 8.16.1 / 8.17.1 / 8.18.0 / 8.19.0
 
 Generally we always aim to support the last two stable Coq releases. Support for
 older versions will be dropped when it is convenient.
diff --git a/_CoqProject b/_CoqProject
index 2b206438b9f12910a380eb94b9dfe59ced3871ad..5898a24d48df2b440a1b5877372d1172c164a146 100644
--- a/_CoqProject
+++ b/_CoqProject
@@ -4,6 +4,8 @@
 -Q stdpp_unstable stdpp.unstable
 # Fixing this one requires Coq 8.17
 -arg -w -arg -future-coercion-class-field
+# Fixing this one requires Coq 8.19
+-arg -w -arg -argument-scope-delimiter
 
 stdpp/options.v
 stdpp/base.v