HFSExplorer for windows latest version download and is still safe?

Yes. The current official HFSExplorer release still appears to be 2021.10.9 (dated October 9, 2021), and the official project page plus SourceForge listing still point to that build as the latest downloadable Windows version. HFSExplorer supports HFS, HFS+, and HFSX, but not APFS. 

Method 1: Use HFSExplorer for older Mac drives (HFS/HFS+)
Download it from the official HFSExplorer page or its SourceForge project page. It is a long-standing open-source tool, so I would consider it reasonably safe if downloaded from those official sources, but because it has not been updated since 2021, I would still scan the installer with Windows Security before running it. 

Method 2: Use a command-line alternative for APFS
If your Mac drive is APFS, HFSExplorer is not the right tool. A command-line alternative is hdimount, whose documentation says it can mount HFS and APFS on Windows via Dokany, in read-only mode. Example syntax:

hdimount <physical-device-or-image> <mount-point>

For example:

hdimount \\.\PhysicalDrive3 M:\

Its documented usage is hdimount [fuse args] <file or physical device> <mount-point>. 

So, in practical terms: if the Mac disk is HFS+, HFSExplorer is still the standard free option; if it is APFS, HFSExplorer does not support it, and you will need another tool instead.