Announce Sergey as Lead Maintainer

Author: benbrandt

MAINTAINERS.md

@@ -2,23 +2,22 @@
 
 The current maintainers for ACP are:
 
-**Last updated:** November 18, 2025
+**Last updated:** February 19, 2026
 
 ## Lead Maintainers
 
-| Name         | Email            | GitHub                       |
-| ------------ | ---------------- | ---------------------------- |
-| Ben Brandt   | benjamin@zed.dev | https://github.com/benbrandt |
-| Agus Zubiaga | agus@zed.dev     | https://github.com/agu-z     |
+| Name           | Email                        | GitHub                       |
+| -------------- | ---------------------------- | ---------------------------- |
+| Ben Brandt     | benjamin@zed.dev             | https://github.com/benbrandt |
+| Sergey Ignatov | sergey.ignatov@jetbrains.com | https://github.com/ignatov   |
 
 ## Core Maintainers
 
-| Name            | GitHub                          |
-| --------------- | ------------------------------- |
-| Richard Feldman | https://github.com/rtfeldman    |
-| Sergey Ignatov  | https://github.com/ignatov      |
-| Anna Zhdan      | https://github.com/anna239      |
-| Niko Matsakis   | https://github.com/nikomatsakis |
+| Name          | GitHub                          |
+| ------------- | ------------------------------- |
+| Agus Zubiaga  | https://github.com/agu-z        |
+| Anna Zhdan    | https://github.com/anna239      |
+| Niko Matsakis | https://github.com/nikomatsakis |
 
 ## SDK Maintainers
 

docs/community/governance.mdx

@@ -9,8 +9,10 @@ description: "How the ACP project is governed"
     responsibilities between the various parties collaborating on ACP.
   </p>
   <p>
-    We are actively working to move ACP to a foundation, and this governance
-    document will be revised accordingly when that happens.
+    ACP is jointly governed by Zed and JetBrains, who collaborate to ensure the
+    protocol serves the broader ecosystem. We aim to operate transparently and
+    make decisions in the best interests of ACP and its community, while working
+    toward transitioning to an independent foundation.
   </p>
 </Note>
 
@@ -77,7 +79,7 @@ A core maintainer may step down at any time by notifying the other core maintain
 
 ### Lead Maintainers (BDFL)
 
-ACP has two lead maintainers: Ben Brandt and Agus Zubiaga. Lead Maintainers can veto any decision by core maintainers or maintainers. This model is also commonly known as Benevolent Dictator for Life (BDFL) in the open source community. The Lead Maintainers should publicly articulate their decision-making and give clear reasoning for their decisions. Lead maintainers are part of the core maintainer group.
+ACP has two lead maintainers: Ben Brandt (Zed Industries) and Sergey Ignatov (JetBrains). Lead Maintainers can veto any decision by core maintainers or maintainers. This model is also commonly known as Benevolent Dictator for Life (BDFL) in the open source community. The Lead Maintainers should publicly articulate their decision-making and give clear reasoning for their decisions. Lead maintainers are part of the core maintainer group.
 
 Lead Maintainers are administrators on all infrastructure for the ACP project where possible. This includes but is not restricted to all communication channels, GitHub organizations and repositories.
 

docs/updates.mdx

@@ -4,6 +4,19 @@ description: Updates and announcements about the Agent Client Protocol
 rss: true
 ---
 
+<Update label="February 18, 2025" tags={["Governance"]}>
+## Sergey Ignatov is now a Lead Maintainer
+
+It is with great pleasure that I announce that Sergey Ignatov, from JetBrains, will be joining me as a Lead Maintainer role for ACP. Agus Zubiaga will remain a key part of the the leadership group as a Core Maintainer.
+
+This is in recognition for Sergey's many contributions to the protocol, we would not be where we are today without his efforts. In the past few months, Zed and JetBrains have been able to collaborate closely on the protocol, and it is time to reflect that fact more formally in our governance structure.
+
+I have enjoyed the chance to work with Sergey and the entire JetBrains team. There is still much work to be done, but with all of the agent and client teams working together, I am confident we can continue to make the ACP vision a reality. Allowing you to collaborate with the agent(s) you love wherever you are are already working.
+
+**Ben Brandt** / Zed Industries / ACP Lead Maintainer
+
+</Update>
+
 <Update label="February 18, 2025" tags={["RFD"]}>
 ## Message ID RFD moves to Draft stage