I saw that the new development release of wine 6.19 is out and i wanna try it but i don’t know how to update. Anybody know how?
According to WineHQ, the latest release is 6.18, not 6.19, and they only offer packages for the common distributions: Debian, Slackware, openSUSE, and Fedora.
Manjaro and Arch are both still on 6.16 across all branches, so if you really want that development release, then you’re going to have to get a version for one of the other distributions from WineHQ and then repackage it for the Arch Linux Package Manager.
I suppose you could try converting the Debian version with debtap ─ that one in itself is a package from the AUR ─ but if the end result breaks your system, then you get to keep all the pieces. 
pamac build debtap
I’ve never used it, but I suspect it’s a command-line tool, and if so, it’ll have a man page.
If debtap only converts the package but does not install it, then you can install the converted package with pacman as follows…
cd /path/to/the/package && sudo pacman -U name-of-the-converted-package
Clone https://aur.archlinux.org/wine-staging-git.git.
git clone https://aur.archlinux.org/wine-staging-git.git
Modify the pkgrel with the tag you want and run
makepkg -isThere is TKG-Wine precompiled git build available on Chaotic AUR repo: https://archlinux.pkgs.org/rolling/chaotic-aur-x86_64/wine-tkg-fsync-git-6.18.r411.g3660176e09b-326-x86_64.pkg.tar.zst.html
TKG-Wine is unofficial customized Wine and it is optimized for gaming. It works well in Manjaro.