Premiere Pro 2024 vs Premiere Pro 2018: what is different?
Premiere Pro 2024 (24.x, released Oct 2023) saves projects with internal schema version 42. Premiere Pro 2018 (12.0, released Oct 2017) only understands up to 33, which is why opening the file shows “This project was saved in a newer version of Adobe Premiere Pro”. The message is a gate, not a judgement about the content.
| Premiere Pro 2024 | Premiere Pro 2018 | |
|---|---|---|
| Release | Oct 2023 | Oct 2017 |
| App build | 24.x | 12.0 |
| Project Version attribute | 42 | 33 |
| XML serialisation | Dense (full fields) | Dense (full fields) |
What the converter changes in your file
A .prproj is gzip-compressed XML. The tool decompresses it, edits the root Project element, and compresses it again:
- <Project ObjectID="1" ClassID="62ad66dd-0dcd-42da-a660-6d8fbde94876" Version="42"> + <Project ObjectID="1" ClassID="62ad66dd-0dcd-42da-a660-6d8fbde94876" Version="33">
Both 2024 and 2018 use the dense serialisation, so no fields need rebuilding. Changing the version is the only edit required.
What you may lose going from 2024 to 2018
Features below were introduced after Premiere Pro 2018. Their data may stay in the XML, but Premiere Pro 2018 has no code to interpret it, so expect them to be ignored, flattened or missing:
Added in Premiere Pro 2024
- Text-Based Editing and transcript-driven cuts
- Enhance Speech and filler-word detection
- Redesigned Lumetri Color interface
- Background auto-save
Added in Premiere Pro 2023
- Speech-to-Text upgraded to 18 languages
- Mask colour visualisation and improved masking tools
- Sequence locking for Team Projects
- Faster hardware-accelerated export
Added in Premiere Pro 2022
- Speech-to-Text transcripts and rebuilt captions tracks
- New workspace layouts and enhanced proxy workflow
- Remix tool and Apple silicon support
Added in Premiere Pro 2021
- Productions workflow becoming mainstream
- Large under-the-hood project format changes (community reports a hard barrier between 2021 and 2020)
Added in Premiere Pro 2020
- Auto Reframe (AI reframing for vertical and square)
- Time remapping up to 20,000%
- HDR10 metadata on export
Added in Premiere Pro 2019
- Selective colour grading and display colour management
- Intelligent audio cleanup in Essential Sound
- Add, rename and edit multiple Lumetri instances
- Editable vector graphics
Why this jump is rated high risk
- This crosses the 2021 → 2020 boundary where Adobe changed the project format substantially.
- 6 major releases separate these versions, so more newer features are unsupported.
Step-by-step: open a 2024 project in 2018
- Duplicate your
.prproj. Never convert your only copy. - Drop it into the panel above and choose Premiere Pro 2018 as the target.
- Download the converted file and open it in Premiere Pro 2018. Expect a prompt about converting an older project, which is normal.
- Create a brand new empty project in Premiere Pro 2018 and import the converted project into it, rather than continuing in it.
- Scrub every sequence. Relink media if drive letters or paths differ.
Don't have Premiere Pro 2018? Open the Creative Cloud desktop app, choose All apps → Premiere Pro → Other versions and install it alongside your current version.