"The first beta release. "Beta"
means that there will be no significant changes till the final v2.00.
Now it supports memory and hardware breakpoints. They are fully
conditional, and the number of memory breakpoints is unlimited. Fast
command emulation takes memory breakpoints into account. In fact, run
trace may be much faster than the full-speed run if the number of false
access violations is high. Active hardware breakpoints turn emulation
off, but this may change in the future.
SSE registers are fully supported. OllyDbg understands all command set extentions up to SSE4. AMD's SSE5 is not supported, but as far as I know, there are no SSE5-capable processors yet.
Help on command covers all FPU commands. Help on some registers and bits is also available.
Autoupdate of dump windows may also be useful."
Download and Information Link: http://www.ollydbg.de/version2.html