VERSION            |  2 +-
 download.texi      | 32 +++++++++++++++++++-------------
 news.texi          | 16 ++++++++++++++++
 pygost/__init__.py |  2 ++
 www.texi           |  4 ++--

diff --git a/VERSION b/VERSION
index dddd2b6fe8e64351ebd48d13898cd77b3dd21803c72f8a028b265ed6c316055f..1895f81d1738a241e12e69233c2d67e0f2283cc2a6c9b2db4f148658fcdf4d58 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0
+4.1
diff --git a/download.texi b/download.texi
index 539b7fae3740df1743ebae46ad62da7c40faf3322c91d6c9e76efe26e2094d0e..d1ece8eeaa0f1c3c8f8689067dd0ced1bff119cc28974a9ff5aa03e9c8b15800 100644
--- a/download.texi
+++ b/download.texi
@@ -1,18 +1,20 @@
 @node Download
 @unnumbered Download
 
+@set VERSION 4.1
+
 No additional dependencies except Python 2.7/3.x interpreter are required.
 
 Preferable way is to download tarball with the signature:
 
-@verbatim
-$ wget http://pygost.cypherpunks.ru/pygost-4.0.tar.xz
-$ wget http://pygost.cypherpunks.ru/pygost-4.0.tar.xz.sig
-$ gpg --verify pygost-4.0.tar.xz.sig pygost-4.0.tar.xz
-$ xz -d < pygost-4.0.tar.xz | tar xf -
-$ cd pygost-4.0
+@example
+$ [fetch|wget] http://pygost.cypherpunks.ru/pygost-@value{VERSION}.tar.xz
+$ [fetch|wget] http://pygost.cypherpunks.ru/pygost-@value{VERSION}.tar.xz.sig
+$ gpg --verify pygost-@value{VERSION}.tar.xz.sig pygost-@value{VERSION}.tar.xz
+$ xz --decompress --stdout pygost-@value{VERSION}.tar.xz | tar xf -
+$ cd pygost-@value{VERSION}
 $ python setup.py install
-@end verbatim
+@end example
 
 @multitable {XXXXX} {XXXX-XX-XX} {XXXX KiB} {link sign} {xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx} {xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}
 @headitem Version @tab Date @tab Size @tab Tarball @tab SHA256 checksum @tab Streebog-256 checksum
@@ -92,11 +94,15 @@ @tab @code{42cfd0cdf357997a909a9114ca14391b4c5e8b62e298675f899b80a8a26d690f}
 
 @end multitable
 
-But also you can use PIP (@strong{no} authentication is performed!):
+But also you can use pip (@strong{no} OpenPGP authentication is
+performed!) with PyPI:
 
-@verbatim
-$ pip install pygost==3.15
-@end verbatim
+@example
+$ cat > requirements.txt <<EOF
+pygost==@value{VERSION} --hash=sha256:TODO
+EOF
+$ pip install --requirement requirements.txt
+@end example
 
 You @strong{have to} verify downloaded tarballs integrity and
 authenticity to be sure that you retrieved trusted and untampered
@@ -118,10 +124,10 @@
 @item @url{https://lists.cypherpunks.ru/mailman/listinfo/gost, gost} maillist
 
 @item
-@verbatim
+@example
 $ gpg --auto-key-locate dane --locate-keys pygost at cypherpunks dot ru
 $ gpg --auto-key-locate wkd --locate-keys pygost at cypherpunks dot ru
-@end verbatim
+@end example
 
 @item
 @verbatiminclude PUBKEY.asc
diff --git a/news.texi b/news.texi
index e30dbcd83914c297b43ad8f8b4052bbe13f2c48b83e83b4bfd8a28254815ed8d..64b6e221bbd598c13b7132ca38ee72f24d93171db9b8bdc00e750e363d713ec5 100644
--- a/news.texi
+++ b/news.texi
@@ -3,6 +3,22 @@ @unnumbered News
 
 @table @strong
 
+@anchor{Release 4.1}
+@item 4.1
+    @itemize
+    @item PEP-396 compatible module's @code{__version__}
+    @item Curve parameters aliases:
+@verbatim
+id-GostR3410-2001-CryptoPro-XchA-ParamSet -> id-GostR3410-2001-CryptoPro-A-ParamSet
+id-GostR3410-2001-CryptoPro-XchB-ParamSet -> id-GostR3410-2001-CryptoPro-C-ParamSet
+id-tc26-gost-3410-2012-256-paramSetB      -> id-GostR3410-2001-CryptoPro-A-ParamSet
+id-tc26-gost-3410-2012-256-paramSetC      -> id-GostR3410-2001-CryptoPro-B-ParamSet
+id-tc26-gost-3410-2012-256-paramSetD      -> id-GostR3410-2001-CryptoPro-C-ParamSet
+@end verbatim
+    @item Forbid any later GNU GPL version autousage (project's licence
+        now is GNU GPLv3 only)
+    @end itemize
+
 @anchor{Release 4.0}
 @item 4.0
     @itemize
diff --git a/pygost/__init__.py b/pygost/__init__.py
index 0d8988eb5f15a16eabf19b6ff4e58d898859cadc199c9e6369a9677260b3a4a9..751fc3144849ff59a0b43d3aa1738602a8926b3016d4a5d4127d21ba3790a10b 100644
--- a/pygost/__init__.py
+++ b/pygost/__init__.py
@@ -2,3 +2,5 @@ """ Pure Python GOST cryptographic functions library.
 
 PyGOST is free software: see the file COPYING for copying conditions.
 """
+
+__version__ = "4.1"
diff --git a/www.texi b/www.texi
index 7138bb5a0d045eb7795d581306db8ad1971d163e97540858177cdeb7f90755dd..2e88e823490b97d5c0d680f690d54b6829dbb523dac7719ad607c4eced3b035a 100644
--- a/www.texi
+++ b/www.texi
@@ -60,7 +60,7 @@ @end itemize
 
 Example 34.10-2012 keypair generation, signing and verifying:
 
-@verbatim
+@example
 >>> from pygost.gost3410 import CURVES
 >>> curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
 >>> from os import urandom
@@ -80,7 +80,7 @@ >>> signature = sign(curve, prv, dgst, mode=2012)
 >>> from pygost.gost3410 import verify
 >>> verify(curve, pub, dgst, signature, mode=2012)
 True
-@end verbatim
+@end example
 
 Please send questions, bug reports and patches to
 @url{https://lists.cypherpunks.ru/mailman/listinfo/gost, gost}