diff --git a/CHANGES.md b/CHANGES.md
index e136710..89274fb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,20 @@
+# 0.11
+
+- entire rework of the collector, now lighter, and using an open sum type
+    for `span`. No global state is required anymore.
+- add `enabled` to the collector
+- extensible `metric`; pass level around in collector
+- remove unused deps on hmap, thread-local-storage
+- add `Trace.with_setup_collector`
+- add `trace.debug` to find what spans were not closed on exit
+- remove dead code and `on_tracing_error`
+- remove subscriber entirely
+- core: remove `current_span` from collector
+- update deps to ppxlib=0.37~
+- breaking: use poly variants for `user_data/span_flavor`
+- use `at_exit` in `trace_tef` and `tldrs`
+- fix fuchsia: bound check
+
 # 0.10
 
 - breaking: manual spans now take a `explicit_span_ctx` as parent, that
diff --git a/dune-project b/dune-project
index e777375..0696421 100644
--- a/dune-project
+++ b/dune-project
@@ -4,10 +4,10 @@
 
 (generate_opam_files true)
 
-(version 0.10)
+(version 0.11)
 
 (source
- (github c-cube/ocaml-trace))
+ (github ocaml-tracing/ocaml-trace))
 
 (authors "Simon Cruanes")
 
diff --git a/ppx_trace.opam b/ppx_trace.opam
index 51fa2d1..10b4574 100644
--- a/ppx_trace.opam
+++ b/ppx_trace.opam
@@ -1,13 +1,13 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.10"
+version: "0.11"
 synopsis: "A ppx-based preprocessor for trace"
 maintainer: ["Simon Cruanes"]
 authors: ["Simon Cruanes"]
 license: "MIT"
 tags: ["trace" "ppx"]
-homepage: "https://github.com/c-cube/ocaml-trace"
-bug-reports: "https://github.com/c-cube/ocaml-trace/issues"
+homepage: "https://github.com/ocaml-tracing/ocaml-trace"
+bug-reports: "https://github.com/ocaml-tracing/ocaml-trace/issues"
 depends: [
   "ocaml" {>= "4.12"}
   "ppxlib" {>= "0.37" & < "0.38"}
@@ -35,4 +35,4 @@ build: [
   ]
   ["dune" "install" "-p" name "--create-install-files" name]
 ]
-dev-repo: "git+https://github.com/c-cube/ocaml-trace.git"
+dev-repo: "git+https://github.com/ocaml-tracing/ocaml-trace.git"
diff --git a/trace-fuchsia.opam b/trace-fuchsia.opam
index 4dcac5b..0dc6639 100644
--- a/trace-fuchsia.opam
+++ b/trace-fuchsia.opam
@@ -1,14 +1,14 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.10"
+version: "0.11"
 synopsis:
   "A high-performance backend for trace, emitting a Fuchsia trace into a file"
 maintainer: ["Simon Cruanes"]
 authors: ["Simon Cruanes"]
 license: "MIT"
 tags: ["trace" "tracing" "fuchsia"]
-homepage: "https://github.com/c-cube/ocaml-trace"
-bug-reports: "https://github.com/c-cube/ocaml-trace/issues"
+homepage: "https://github.com/ocaml-tracing/ocaml-trace"
+bug-reports: "https://github.com/ocaml-tracing/ocaml-trace/issues"
 depends: [
   "ocaml" {>= "4.08"}
   "trace" {= version}
@@ -34,5 +34,5 @@ build: [
   ]
   ["dune" "install" "-p" name "--create-install-files" name]
 ]
-dev-repo: "git+https://github.com/c-cube/ocaml-trace.git"
+dev-repo: "git+https://github.com/ocaml-tracing/ocaml-trace.git"
 available: arch != "s390x"
diff --git a/trace-tef.opam b/trace-tef.opam
index 10dbd4d..2f50695 100644
--- a/trace-tef.opam
+++ b/trace-tef.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.10"
+version: "0.11"
 synopsis:
   "A simple backend for trace, emitting Catapult/TEF JSON into a file"
 maintainer: ["Simon Cruanes"]
@@ -9,8 +9,8 @@ license: "MIT"
 tags: [
   "trace" "tracing" "catapult" "TEF" "chrome-format" "chrome-trace" "json"
 ]
-homepage: "https://github.com/c-cube/ocaml-trace"
-bug-reports: "https://github.com/c-cube/ocaml-trace/issues"
+homepage: "https://github.com/ocaml-tracing/ocaml-trace"
+bug-reports: "https://github.com/ocaml-tracing/ocaml-trace/issues"
 depends: [
   "ocaml" {>= "4.08"}
   "trace" {= version}
@@ -35,4 +35,4 @@ build: [
   ]
   ["dune" "install" "-p" name "--create-install-files" name]
 ]
-dev-repo: "git+https://github.com/c-cube/ocaml-trace.git"
+dev-repo: "git+https://github.com/ocaml-tracing/ocaml-trace.git"
diff --git a/trace.opam b/trace.opam
index 6faf56b..81473ad 100644
--- a/trace.opam
+++ b/trace.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.10"
+version: "0.11"
 synopsis:
   "A lightweight stub for tracing/observability, agnostic in how data is collected"
 description: """
@@ -12,8 +12,8 @@ maintainer: ["Simon Cruanes"]
 authors: ["Simon Cruanes"]
 license: "MIT"
 tags: ["trace" "tracing" "observability" "profiling"]
-homepage: "https://github.com/c-cube/ocaml-trace"
-bug-reports: "https://github.com/c-cube/ocaml-trace/issues"
+homepage: "https://github.com/ocaml-tracing/ocaml-trace"
+bug-reports: "https://github.com/ocaml-tracing/ocaml-trace/issues"
 depends: [
   "ocaml" {>= "4.08"}
   "dune" {>= "2.9"}
@@ -39,4 +39,4 @@ build: [
   ]
   ["dune" "install" "-p" name "--create-install-files" name]
 ]
-dev-repo: "git+https://github.com/c-cube/ocaml-trace.git"
+dev-repo: "git+https://github.com/ocaml-tracing/ocaml-trace.git"