diff --git a/IPython/core/release.py b/IPython/core/release.py
index 5ec43bd..d9eb28a 100644
--- a/IPython/core/release.py
+++ b/IPython/core/release.py
@@ -20,7 +20,7 @@ _version_minor = 29
 _version_patch = 0
 _version_extra = ".dev"
 # _version_extra = "rc1"
-# _version_extra = ""  # Uncomment this for full releases
+_version_extra = ""  # Uncomment this for full releases
 
 # Construct full version string from these.
 _ver = [_version_major, _version_minor, _version_patch]
@@ -32,22 +32,13 @@ if _version_extra:
 version = __version__  # backwards compatibility name
 version_info = (_version_major, _version_minor, _version_patch, _version_extra)
 
-# Change this when incrementing the kernel protocol version
-kernel_protocol_version_info = (5, 0)
-kernel_protocol_version = "%i.%i" % kernel_protocol_version_info
 
 license = "BSD-3-Clause"
 
-authors = {'Fernando' : ('Fernando Perez','fperez.net@gmail.com'),
-           'Janko'    : ('Janko Hauser','jhauser@zscout.de'),
-           'Nathan'   : ('Nathaniel Gray','n8gray@caltech.edu'),
-           'Ville'    : ('Ville Vainio','vivainio@gmail.com'),
-           'Brian'    : ('Brian E Granger', 'ellisonbg@gmail.com'),
-           'Min'      : ('Min Ragan-Kelley', 'benjaminrk@gmail.com'),
-           'Thomas'   : ('Thomas A. Kluyver', 'takowl@gmail.com'),
-           'Jorgen'   : ('Jorgen Stenarson', 'jorgen.stenarson@bostream.nu'),
-           'Matthias' : ('Matthias Bussonnier', 'bussonniermatthias@gmail.com'),
-           }
+authors = {
+    "Fernando": ("Fernando Perez", "fperez.net@gmail.com"),
+    "M": ("M Bussonnier", "mbussonnier@gmail.com"),
+}
 
 author = 'The IPython Development Team'