diff --git a/README.md b/README.md
index a6e5bbe..a20084d 100644
--- a/README.md
+++ b/README.md
@@ -193,6 +193,19 @@ See LICENSE file.
 
 ## History
 
+### v0.30 (Sep 01 2017)
+  - Updated `pairs` to avoid using `__pairs` in Lua 5.2+.
+  - Added `metatostring` option to disable `__tostring` processing during serialization.
+  - Added `level` to the parameters of the custom function (closes #25).
+  - Added `maxlength` option to limit the space taken by table elements.
+  - Optimized serialization of functions when `nocode` option is specified.
+  - Added protection from `__serialize` check failing (pkulchenko/ZeroBraneStudio#732).
+  - Added `keyignore` option for the serializer.
+  - Added check for environments that may not have 'default' tables as tables.
+  - Added numeric format to preserve floating point precision (closes #17).
+  - Added using `debug.metatable` when available.
+  - Improved handling of failures in `__tostring` (pkulchenko/ZeroBraneStudio#446).
+
 ### v0.28 (May 06 2015)
   - Switched to a method proposed by @SoniEx2 to disallow function calls (#15).
   - Added more `tostring` for Lua 5.3 support (pkulchenko/ZeroBraneStudio#401).
diff --git a/misc/serpent-0.30-1.rockspec b/misc/serpent-0.30-1.rockspec
new file mode 100644
index 0000000..60dc63d
--- /dev/null
+++ b/misc/serpent-0.30-1.rockspec
@@ -0,0 +1,25 @@
+package = "serpent"
+version = "0.30-1"
+source = {
+  url = "git://github.com/pkulchenko/serpent.git",
+  tag = "0.30"
+}
+
+description = {
+  summary = "Lua serializer and pretty printer",
+  homepage = "https://github.com/pkulchenko/serpent",
+  maintainer = "Paul Kulchenko <paul@kulchenko.com>",
+  license = "MIT",
+}
+
+dependencies = {
+  "lua >= 5.1, < 5.4",
+}
+
+build = {
+  type = "builtin",
+  modules = {
+    ["serpent"] = "src/serpent.lua",
+  },
+  copy_directories = { "t" },
+}
diff --git a/src/serpent.lua b/src/serpent.lua
index df7edb1..4558a1b 100644
--- a/src/serpent.lua
+++ b/src/serpent.lua
@@ -1,4 +1,4 @@
-local n, v = "serpent", "0.291" -- (C) 2012-17 Paul Kulchenko; MIT License
+local n, v = "serpent", "0.30" -- (C) 2012-17 Paul Kulchenko; MIT License
 local c, d = "Paul Kulchenko", "Lua serializer and pretty printer"
 local snum = {[tostring(1/0)]='1/0 --[[math.huge]]',[tostring(-1/0)]='-1/0 --[[-math.huge]]',[tostring(0/0)]='0/0'}
 local badtype = {thread = true, userdata = true, cdata = true}