Probably last version just added different languages, for the translations check out:
@weejiaquan(中文),Joon(한국어),@Tuhoontuomittu(Suomalainen),@SpooneyH20(Español),zZSCHWFFZz(Magyar),@smackymander(Français),MPT(日本語),@fixx1983(Italiano)

This is probably the last release as other tools have been released that do the same job, this one i partially like https://github.com/Llop1s/FTP-PSVita-VPK-Installer/ (Does ftp transfers too)

Thanks for the 11,000~ total downloads <3

Downloads:
Mac64: http://www.mediafire.com/download/p23qe7rrr1z826a/VPKShrink_v4.0_mac64
Mac32: http://www.mediafire.com/download/ky3ubkfl943d8ue/VPKShrink_v4.0_mac32
Win64: http://www.mediafire.com/download/1nr71y5b3mzjqs7/VPKShrink_v4.0_win64.exe
Win32: http://www.mediafire.com/download/l5ky265c66f673s/VPKShrink_v4.0_win32.exe
Linux64: http://www.mediafire.com/download/tbbi34yqi7juqbr/VPKShrink_v4.0_linux64
Linux32: http://www.mediafire.com/download/557dm5kq570j7ol/VPKShrink_v4.0_linux32
LinuxArm: http://www.mediafire.com/download/3ta5a7f572eudj6/VPKShrink_v4.0_linuxArm

-@HaiHakkuIku