Ubisoft has seemingly hit some hiccups in development for the upcoming game, Tom Clancy’s Rainbow Six: Siege. The game, originally announced back in 2014 at E3, was previously set for release on October 13th, but the date has been pushed back to December 1st, a month and a half later.

The change was described first on Ubisoft’s official blog, Ubilog earlier today. In the post, the setback was attributed to the importance of player feedback to the development team. R6: Siege has been in closed alpha for quite a while now, and the flaws and potential improvements seen therein by the developers has convinced them in what “wasn’t an easy decision.” More specifically, the announcement opened with the following passage:

Whether it’s been through playtests in our studios, the closed alpha, or recent hands-on demos at events like E3 or Gamescom, player feedback has been essential to the development of Rainbow Six Siege. Getting the game in people’s hands and listening to what they have to say helps us understand how we can improve their experience, and we’d like to thank everyone who’s taken part in the process so far.

With that in mind, we’ve decided to push the release date of Rainbow Six Siege to December 1, 2015 for all regions. This wasn’t an easy decision, but based on the feedback we’ve received, and based on our own internal tests, we felt there are adjustments and improvements we can make…

Listed as well were a handful of the details getting the developers’ attention, “including improving the co-op experience across all game modes, weapon and gadget balancing, as well as menu and interface navigation.” Hopefully these changes prove to be worth the wait.

While the fans may be a bit disappointed, only time will tell if the decision was good or bad. In the meantime, however, Ubisoft also reminded readers that the progress into the closed beta stage of testing is still going to begin on September 24th, as previously planned.

The new poster above fairly concisely lists the new official release dates, and anyone interested in opting into the closed beta can visit the official registration site.