Google Chrome has announced that it will release two major versions every three months now unlike the earlier one every three months. The Chrome blog announces this saying,

Running under ideal conditions, we will be looking to release a new stable version about once every six weeks, roughly twice as often as we do today.

So why the change? We have three fundamental goals in reducing the cycle time:

Shorten the release cycle and still get great features in front of users when they are ready

Make the schedule more predictable and easier to scope

Reduce the pressure on engineering to makea release

However, they are holding up the words “under ideal conditions” strongly and have mentioned again that,

when we faced a deadline with an incomplete feature, we had three options, all undesirable: (1) Engineers had to rush or work overtime to complete the feature by the deadline, (2) We delayed the release to complete that feature (which affected other un-related features), or (3) The feature was disabled and had to wait approximately 3 months for the next release. With the new schedule, if a given feature is not complete, it will simply ride on the the next release train when it’s ready. Since those trains come quickly and regularly (every six weeks), there is less stress.

Thus, a lot of load will be taken off the engineers and the time window of six months weeks will give developers ample time to work on any incomplete feature. In addition, with every new release, the software version will increase as 6.0, 7.0, 8.0 and so on. This marks a continuous development of Google Chrome and clearly indicates how seriously Google is taking the web-browser market.

(Source)