diff --git a/README.md b/README.md
index c59d4f2..4e81579 100644
--- a/README.md
+++ b/README.md
@@ -10,9 +10,9 @@ desktop application. Apache-2.0, developed in the open from the first commit.
 
 ## Status
 
-Pre-alpha, and usable from source. Milestones M0 to M4 are approved: 19 slices, each merged with a
-merge commit and tagged `slice/NNN` (`git tag -l 'slice/*' | wc -l` → 19, on 2026-09-21). What
-that means in practice:
+Pre-alpha, and usable from source. Milestones M0 to M4 are approved, and the first slice of M5a
+(059, the MCP measurement) with them: 20 slices, each merged with a merge commit and tagged
+`slice/NNN` (`git tag -l 'slice/*' | wc -l` → 20, on 2026-09-21). What that means in practice:
 
 - **Talks.** Streaming chat with any provider behind one behaviour (`Trinity.LLM`), switched by
   configuration; the assistant's text is persisted as a draft every 500 ms or 2 KB while it
diff --git a/ROADMAP.md b/ROADMAP.md
index 4cc0430..66bff62 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -52,7 +52,7 @@ standards register names the rows that ask for them.
 | 040 | Skills registry + agentskills.io format + progressive disclosure | 4 Skills | M | 020 | approved |
 | 041 | Skill self-management with staged approval + scanner | 4 Skills | M | 040, 021 | approved |
 | 050 | Scheduler: Oban cron agent tasks with delivery targets | 5 Automation | M | 012 | planned |
-| 059 | MCP capability gap against beam_mcp, and the server seam probe | 6 MCP | S/M | 020 | done |
+| 059 | MCP capability gap against beam_mcp, and the server seam probe | 6 MCP | S/M | 020 | approved |
 | 060 | MCP client: Trinity's thin driver (2026-07-28 preferred, 2025-11-25 compat, MRTR, Tasks) | 6 MCP | L | 059, 021 | planned |
 | 061 | MCP server (stateless 2026-07-28 + compat, MRTR approvals, headless profile) | 6 MCP | M | 060, 024 | planned |
 | 062 | MCP authorization: OAuth client role, RS, embedded AS, Enterprise Managed Authorization (ID-JAG) | 6 MCP | L | 061 | planned |