diff --git a/Makefile b/Makefile
index 8a0e5cb0..41a02fe4 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
 #     major : Backwards compatible changes to the API
 #     minor : Additions leaving the API unmodified
 #     bugfix: Bugfixes only
-VERSION    = 2.3.99
+VERSION    = 2.4.0
 VERM       = $(shell echo $(VERSION) | cut -d '.' -f 1)
 CFLAGS    ?= -g -Wall -O2
 LDFLAGS   ?=
diff --git a/README.md b/README.md
index 40ce46bc..1a5eed3f 100644
--- a/README.md
+++ b/README.md
@@ -87,15 +87,13 @@ See [CONTRIBUTING.md](CONTRIBUTING.md).
 Release History
 ---------------
 
-* __v2.3.99 (tbd)__
+* __v2.4.0 (2023-04-08)__
 
     _Changes_:
     - Recognize single frame models and rackable models
     - `zname`: Add support for option `--json`
     - `qc_dump`: Add trace and JSON dump to `.tgz`
 
-    _Bug fixes_:
-
 * __v2.3.2 (2022-09-19)__
 
     _Changes_:
diff --git a/query_capacity.h b/query_capacity.h
index c96db455..44661429 100644
--- a/query_capacity.h
+++ b/query_capacity.h
@@ -5,7 +5,7 @@
 #ifndef QUERY_CAPACITY
 #define QUERY_CAPACITY
 
-#define QC_VERSION	"2.3.99"
+#define QC_VERSION	"2.4.0"
 
 
 /* Build Customization */