Q:

Unable to install LDT to Eclipse 2019-12 (4.14.0)

I was setting up a new laptop and downloaded Eclipse: Version: 2019-12 (4.14.0) but when I tried to add the LDT plugins, it fails because it cannot satisfy dependency (see below.)
The prior version of eclipse I had on my last laptop was 2018-12 (4.10.)
Does anyone have a list of what or know which the last/latest version of Eclipse which works with the (1.4.2?) LDT plugin is?
[[EDIT]] => Verified that Lua Development Tools still installs if I reinstall 2018-12 Eclipse. So it is a compatability thing as I asked. Since no one yet has the answer, I will install one after another Eclipse version to determine last that works and update this entry. VERIFIED: 2019-09 is the latest that works with LDT plugin.
(pointed repo to "stable" (although tried even nightly after that)
Error message:
Cannot complete the install because one or more required items could not be found.
Software being installed: Lua Development Tools SDK 1.4.2.201804031433 (org.eclipse.ldt.source.feature.group 1.4.2.201804031433)
Missing requirement: Lua Development Tools Core 1.3.0.201804031433 (org.eclipse.ldt 1.3.0.201804031433) requires 'osgi.bundle; org.eclipse.dltk.core [5.5.0,6.0.0)' but it could not be found
Cannot satisfy dependency:
From: Lua Development Tools - Core Feature 1.4.2.201804031433 (org.eclipse.ldt.core.feature.group 1.4.2.201804031433)
To: org.eclipse.equinox.p2.iu; org.eclipse.ldt [1.3.0.201804031433,1.3.0.201804031433]
Cannot satisfy dependency:
From: Lua Development Tools 1.4.2.201804031433 (org.eclipse.ldt.feature.group 1.4.2.201804031433)
To: org.eclipse.equinox.p2.iu; org.eclipse.ldt.core.feature.group [1.4.2.201804031433,1.4.2.201804031433]
Cannot satisfy dependency:
From: Lua Development Tools SDK 1.4.2.201804031433 (org.eclipse.ldt.source.feature.group 1.4.2.201804031433)
To: org.eclipse.equinox.p2.iu; org.eclipse.ldt.feature.group [1.4.2.201804031433,1.4.2.201804031433]

A:

The key error here is 
requires 'osgi.bundle; org.eclipse.dltk.core [5.5.0,6.0.0)'

which is saying that a version of the 'org.eclipse.dltk.core' plug-in (bundle in OSGi terminology) with a version of at least 5.5.0 and less than 6.0.0 is required. 
The Eclipse 2019-12 release has version 6.0 of this plug-in so it does not match the criteria and the install fails.

