Microsoft revealed on Wednesday that the company plans to issue its Windows Phone 7.5 update to existing devices in the next two weeks.

Squashing rumours and speculation, Microsoft’s general manager of customer experience engineering, Eric Hautala, revealed that the company is making “solid progress” on the Windows Phone 7.5 update. “We now expect to start rolling it out in the next week or two,” said Hautala in a blog post on Wednesday. “At that time, we’ll also refresh the Where’s My Phone Update? table to reflect the worldwide rollout status,” he added.

Microsoft warned users not to install leaked copies of Windows Phone 7.5. “Every Windows Phone will also receive software from the handset manufacturer,” explained Hautala. “Since your phone requires the proper firmware to function as designed, my advice is simple: steer clear of bootleg updates and homebrew tools.” Copies of Windows Phone 7.5 RTM builds have been made available for various devices over the past several weeks.

“I know you’re eager to get your hands on the next release of Windows Phone,” said Hautala. “Windows Phone is equally excited and eager to deliver it to you. Please hang on—we’re almost there.” Microsoft’s Windows Phone 7.5 “Mango” update includes over 500 new features. Microsoft has built in multitasking, Windows Live Messenger and Twitter support. Windows Phone 7.5 devices are now available in some countries with other devices and operators set to launch new handsets in the coming weeks.