# Keep every deck a founder sends, and every correction they make

> Pitch deck version history in Delsivo means a replacement deck never overwrites the first one. Each upload becomes a new version, and citations made against an earlier version keep opening that version's slide. Founders can correct facts extracted from their deck, and the original value stays beside the correction. Planned for the pilot release; Delsivo is at design partner stage, so nothing is generally available yet.

Source: https://delsivo.com/features/deck-versions-and-corrections · Updated 2026-11-06 · Planned, not available yet

## Key takeaways

- Every deck upload is stored as its own numbered version, with the original file preserved.
- Citations keep resolving to the version they were made against, even after a newer deck arrives.
- Founders correct extracted facts in the portal; the original stays and both are visible to the fund.
- Analysts see the difference between versions and decide which values to accept.

## How pitch deck version history works

Founders update decks between the first application and a partner meeting. A churn figure changes, a slide on pricing appears, the team slide gets a new hire. In email threads and shared folders, the old file is usually lost or renamed. Delsivo is designed to keep each one.

When a founder or analyst uploads a deck on a deal that already has one, Delsivo creates version 2 linked to version 1. The new file goes through the same malware scan, extraction and analysis. The earlier version, its slide images and its extracted facts stay exactly as they were.

Example: two versions of one deck

|  | Version 1 (application) | Version 2 (before first meeting) |
| --- | --- | --- |
| Uploaded by | Founder, through the application | Founder, from the founder workspace |
| Paying customers | Slide 7: "20 enterprise customers" | Slide 8: "8 paying, 12 in pilot" |
| Ask | Slide 14: "$1.5M seed" | Slide 15: "$1.5M seed" |
| Citations made | Kept, still open version 1, slide 7 | New citations point at version 2 |

## Why old citations must keep working

A claim on the [claim tracker](https://delsivo.com/features/claim-tracker) might say "Founder reported: 20 enterprise customers (deck v1, slide 7)". If the founder later uploads a deck that says something different, that first statement is still evidence. It shows what was said and when. Rewriting the citation to the new deck would erase the history your team needs when a number moves.

So the reference holds the deck version, not just a slide number. Opening it shows the slide as it was. The newer deck adds its own citations, and if the two disagree, the claim can be marked Disputed with both sources kept.

## How founders correct extracted facts

1. After the deck is analysed, the founder sees the key facts pulled from it in their portal: company name, domain, stage, sector, round size, currency and headline metrics.
2. The founder edits any value that was read wrongly, for example a round size read as $15M when the slide says $1.5M.
3. The correction is saved as a new value marked as a founder correction. The value extracted from the slide is not deleted.
4. Your analyst sees both, with the slide citation for the original, and decides which to use.

Founders never see scores, thesis fit or internal notes while correcting. They only see facts about their own company.

## What your analyst sees when values change

Nothing is accepted on the analyst's behalf. A correction from a founder is a founder-reported value until someone checks it, which is how the [evidence labels](https://delsivo.com/features/evidence-labels) treat it.

- A version list on Deal, Files, with who uploaded each deck and when.
- Facts that differ between versions, side by side, each with its own slide reference.
- Founder corrections marked as such, next to the extracted value they replace.
- Re-running screening on a new version creates a new run and keeps the earlier one.

## Limits in the pilot

The pilot reads PDF decks only, in English first. A deck that is identical to one already analysed for the same fund reuses the stored results instead of running the analysis again. Results are never shared between funds, even for the same file.

## Frequently asked questions

### Does a new deck replace the old one?

No. It becomes a new version on the same deal. The earlier file, its slides and its extracted facts stay available to your team.

### Can a founder change what the deck said?

A founder can correct an extracted fact, but the original value from the slide is kept. Your team sees both and chooses which to accept.

### What happens to claims when a new deck disagrees with the old one?

Both statements are kept with their own citations. An analyst can mark the claim Disputed or Unresolved and ask the founder to explain the change.

### Is pitch deck version history live?

Not yet. It is planned for the pilot release. Delsivo is working with design partners and nothing is generally available.

## Related pages

- [Pitch deck citations](https://delsivo.com/features/slide-citations)
- [Duplicate startup applications](https://delsivo.com/features/duplicate-detection)
- [Claims and evidence](https://delsivo.com/claims-and-evidence)
- [For founders](https://delsivo.com/founders)