I just built 4.6.0 on my S2 to try to resolve an issue I'm having with multipool.us (didn't work btw)
cgminer version 4.6.0 - Started: [2014-09-18 18:16:32]
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(5s):1.643T (1m):1.399T (5m):1.144T (15m):892.6G (avg):1.070Th/s
A:371712 R:18432 HW:8380 WU:15069.9/m
Connected to stratum.westhash.com diff 1.02K with stratum as user me
Block: 7cb75f9f... Diff:232M Started: [18:42:26] Best share: 2.09M
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[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: AS2 0 : 51/ 54C 1800R | 3.239T / 1.078Th/s WU:15069.9/m
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There isn't really much of note in the NEWS since 4.3.5, but if anyone would like a copy just tell me where to upload it ...
NEWS since 4.3.5 with stuff relating to other hardware removed -
Version 4.6.0 - 7th September 2014
- We should not be checking for pool_unworkable in cnx_needed as it is keeping
stratum connections open on unused pools
- Properly handle lack of input when adding pool via menu
- Allow workers without passwords
Version 4.5.0 - 29th July 2014
- Reorder and document the configure options
- fix jansson include path in cgminer-api compile instructions
- Make submit_nonce2_nonce return whether the share was valid or not
- Increase the internal buffer for API response, as "stats" command response
can grow greater than 8K
- Detach test pool thread only if we have a blocking startup
Version 4.4.2 - 17th July 2014
- Remove the use of the pthread_tryjoin_np which is currently unimplemented on
many platforms
- Fix processarg parameters loaded from a config file not being saveable
- We only use the jansson in our source tree so no need for special case
handling of older versions
- Upgrade jansson to 2.6
- Only clear sockbuf if it's been allocated
- Fix missing osm-led-mode support in write config
- Deal with nanosecond overflow in both directions on both addition and
subtration of timespecs
- production stats added, reset queue added
- Avoid blocking all pool testing if one pool fails to ever init
- There is no point storing the hints addrinfo in struct pool
- initialise more pool values in benchmark
- merge upstream frequency changes
- Fix an off-by-one.
- fix AntS1 breakages from AntS2 changes
- noncedup - give access to the internal stats
Version 4.4.1 - 21st June 2014
- Clean up pool failure and failover code for stratum
Version 4.4.0 - 16th June 2014
- Clear the pool idle flag in the pool test thread
- Display error message if we receive one on share rejects
- Allow zero length strings to be passed to valid_hex
- delete unused roundl definition
Oh, and it has no getwork support since it couldn't find libcurl despite it being installed, and everything I use supports stratum anyway, so I couldn't be bothered to fight with it any longer than I did trying to get it to see the libraries ...
UPDATE - Nevermind. Absolutely TERRIBLE hashrates with it ... ~3 Gh/s on Slush's pool, and maybe 250 Gh/s on westhash ... went back to 4.3.5-s2 ...
At last... 
I couldn't use this non serious 200$ coupon... 