Hi Roel
Multiple reasons, non really serious.
– v2 only support PHP 5.6 and up, so wanted to wait a moment and see how many users would be affected by that (at the moment I think not a lot of users use older PHP versions)
– Focusing on 3.0 now with many many new features, and want to do v2 after that.
– There no real big benefit for v2 for Paytium users, not many users have asked for Klarna support or multi-currency.
– I’m really busy, implementing v2 with multi-currency and Klarna/Orders API in the Mollie for WooCommerce plugin.
– I tend not to use the newest of the newest code in my software, so users experience more stability.
Kind regards
David