diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1eb437f..b882ff5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,9 +2,9 @@ This project uses [**Break Versioning**](https://www.taoensso.com/break-versioni
 
 ---
 
-# `v1.0.0-beta11` (2024-05-10)
+# `v1.0.0-beta12` (2024-05-14)
 
-> **Dep/s**: [Telemere](https://clojars.org/com.taoensso/telemere/versions/1.0.0-beta11) and [Telemere SLF4J provider](https://clojars.org/com.taoensso/slf4j-telemere/versions/1.0.0-beta11) are on Clojars.  
+> **Dep/s**: [Telemere](https://clojars.org/com.taoensso/telemere/versions/1.0.0-beta12) and [Telemere SLF4J provider](https://clojars.org/com.taoensso/slf4j-telemere/versions/1.0.0-beta12) are on Clojars.  
 > **Versioning**: Telemere uses [Break Versioning](https://www.taoensso.com/break-versioning).
 
 This is a **pre-release** intended for **early adopters** and those who'd like to give feedback. New betas will be released frequently, while I continue to fix issues and make other improvements/additions.
@@ -29,6 +29,7 @@ Big thanks to those that have patiently helped report and debug issues, especial
 ## Recent additions
 
 * \[new] Ongoing [API](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere) and [wiki](https://github.com/taoensso/telemere/wiki) doc improvements
+* \[new] [`add-handler!`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere#add-handler!) can now specify per-handler `:max-shutdown-msecs` (beta12)
 * \[new] (Advanced) Handler fns can now include `:dispatch-opts` metadata, useful for handler authors that want to set defaults for use by [`add-handler!`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere#add-handler!) (beta8)
 * \[new] Added [Slack handler](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.slack#handler:slack) (beta8)
 * \[new] Added [TCP](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.sockets#handler:tcp-socket) and [UDP](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.sockets#handler:udp-socket) socket handlers (beta7)
@@ -39,11 +40,12 @@ Big thanks to those that have patiently helped report and debug issues, especial
 
 ## Recent fixes
 
-* \[fix] [`pr-signal-fn`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.utils#pr-signal-fn) wasn't realizing delayed messages, add tests [cf72017a] (beta11)
-* \[fix] [`pr-signal-fn`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.utils#pr-signal-fn) broken custom pr-fn support, add tests [e7cce0c1] (beta10)
-* \[fix] [#6] Missing root stack trace, add tests [213c6470] (beta9)
-* \[fix] Broken AOT support, add tests [ffea1a30] (beta1)
-* \[fix] SLF4J broken timestamps, add tests [e222297a] (beta1)
+* \[fix] Don't drop signals while draining async buffer during shutdown, add tests (via Encore) (beta12)
+* \[fix] [`pr-signal-fn`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.utils#pr-signal-fn) wasn't realizing delayed messages, add tests \[cf72017a] (beta11)
+* \[fix] [`pr-signal-fn`](https://cljdoc.org/d/com.taoensso/telemere/CURRENT/api/taoensso.telemere.utils#pr-signal-fn) broken custom pr-fn support, add tests \[e7cce0c1] (beta10)
+* \[fix] [#6] Missing root stack trace, add tests \[213c6470] (beta9)
+* \[fix] Broken AOT support, add tests \[ffea1a30] (beta1)
+* \[fix] SLF4J broken timestamps, add tests \[e222297a] (beta1)
 
 ---
 
diff --git a/README.md b/README.md
index fa53ab4..9df4d22 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ It helps enable Clojure/Script systems that are **observable**, **robust**, and
 
 ## Latest release/s
 
-- `v1.0.0-beta11`: [release info](../../releases/tag/v1.0.0-beta11) (for early adopters/feedback)
+- `2024-05-14` `v1.0.0-beta12`: [release info](../../releases/tag/v1.0.0-beta12) (for early adopters/feedback)
 
 [![Main tests][Main tests SVG]][Main tests URL]
 [![Graal tests][Graal tests SVG]][Graal tests URL]
diff --git a/project.clj b/project.clj
index dadca15..194617d 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject com.taoensso/telemere "1.0.0-beta11"
+(defproject com.taoensso/telemere "1.0.0-beta12"
   :author "Peter Taoussanis <https://www.taoensso.com>"
   :description "Structured telemetry library for Clojure/Script"
   :url "https://www.taoensso.com/telemere"
@@ -45,7 +45,7 @@
     [[org.clojure/test.check             "1.1.1"]
      [org.clojure/tools.logging          "1.3.0"]
      [org.slf4j/slf4j-api               "2.0.13"]
-     [com.taoensso/slf4j-telemere "1.0.0-beta11"]
+     [com.taoensso/slf4j-telemere "1.0.0-beta12"]
      #_[org.slf4j/slf4j-simple          "2.0.13"]
      #_[org.slf4j/slf4j-nop             "2.0.13"]
 
diff --git a/slf4j/project.clj b/slf4j/project.clj
index 301fa1e..6ea4df9 100644
--- a/slf4j/project.clj
+++ b/slf4j/project.clj
@@ -1,4 +1,4 @@
-(defproject com.taoensso/slf4j-telemere "1.0.0-beta11"
+(defproject com.taoensso/slf4j-telemere "1.0.0-beta12"
   :author "Peter Taoussanis <https://www.taoensso.com>"
   :description "Telemere backend/provider for SLF4J API v2"
   :url "https://www.taoensso.com/telemere"
@@ -16,7 +16,7 @@
    {:dependencies
     [[org.clojure/clojure   "1.11.3"]
      [org.slf4j/slf4j-api   "2.0.13"]
-     [com.taoensso/telemere "1.0.0-beta11"]]}
+     [com.taoensso/telemere "1.0.0-beta12"]]}
 
    :dev
    {:plugins