Mozilla rushes Firefox 3.5.1 to address serious vulnerability
Mozilla's intention was to use 3.5.1 as a vehicle for tweaks to TraceMonkey that did not make the final cut when it came time for the organization to finally release version 3.5. Betanews tests to earlier private builds of 3.5.1 showed that some of those tweaks did appear to produce slight speed gains over and above 3.5. What we don't know at the moment is whether all those tweaks actually did make it to the 3.5.1 version that's being made available today. Since the "Shiretoko" developers track will now effectively be shifted to 3.5.2, evidence of which code got the final tweaks may only be determined through testing.