# Version history
:point\_right: See [Archived Rainbow Standard Documents](https://docs.rainbowstandard.io/other/archived-methodologies/archived-rainbow-standard-documents) for full versions of previous documents
Change log for Rainbow Standard Rules V7.1
**Additionality**
* Investment: move IRR calculation instructions from additionality template to Standard Rules
* Regulatory: define "upcoming regulations"
Specify downward adjustment required for baseline setting
Co-benefit reporting must include, if applicable, include any SGD indicators that are required by the host country.
Specific standard-level requirement to assess, mitigate, deduct and monitor leakage.
Change log for Rainbow Standard Rules V7
**Replace V6.2 with V7, linked with Procedures Manual V3.0 release**
**Public Consultation: November 2025**
* **General**
* Eligibility criteria replaced with Principles and requirements
* Remove Minimum impact requirement
* **Environmental and social safeguards**
* Specify all projects must prove compliance with local and national regulations
* Strengthened stakeholder consultation procedure, including a required meeting and thorough documentation
* New IPLC and FPIC requirements
* Risk assessment: any material risk identified must have a risk mitigation plan
* Expanded list of risks to assess
* **No scheme hopping**
* New requirements for Project Developers to disclose if they have applied for certification under another standard or registry in the last 5 years
* **Durability**
* Renamed from Permanence section
* Move risk of reversal assessment to methodology-level, if no material risks identified, no project requirements. If material risks are identified, projects follow risk assessment procedure.
* Defined avoidable vs unavoidable reversals
* No standard-level minimum durability threshold, methodologies define minimum permanence
* Minimum contribution to buffer pool changed to 2%, higher minimums may be determined in methodologies
* **Co-benefits**
* Require quantification approach to be detailed and publicly disclosed
* All co-benefits must be monitored
* Removed minimum and maximum limit of 2-4 co-benefits
* **Delivery**
* New section, addresses the removed Real eligibility criteria requirements
* Removed TRL eligibility criteria requirements, replaced with Feasibility
* Added requirements for minimum content of Monitoring plan
* **GHG quantification**
* Added cumulative limit for exclusion cutoff threshold
* Strengthened Uncertainty assessment requirements, and approaches to making conservative choices when faced with uncertainty
* Maximum uncertainty level/discount factor of >15%
* Allow for GWP100 from other IPCC versions, if required for compliance with regulatory schemes
* **Monitoring plan**
* Specify information to be provided with each monitored parameter
* **Baseline**
* Moved out of GHG quantification and into new section, Project and baseline scope
* Replace Guidance on Avoided Emissions by the World Business Council for Sustainable Development (WBCSD) with other best-practice guidelines for baselines (from ICVCM, CORISA, CRCF)
* Specify baseline must account for government policies and legal requirements that lower GHGs
* Remove substitution and targets alignment, reference these principles in Baseline section
**Post-Public Consultation: January 2026**
* Remove all mention of carbon “reduction”, in relation to avoidance, for clarity
* Update high-level carbon removal quantification equtions and sign conventions
Change log for Rainbow Standard Rules V6.2
Replace V6.1 with V6.2 October 2024
* Replace DPD and Detailed Project Description with PDD and Project Design document
* Revised Additionality Template with new requirements:
* Sensitivity analysis
* For barrier analysis, demonstrate alternative activities does not face same barrier
* Revise ESDNH criteria, minimum risks to consider for all projects
Change log for Rainbow Standard Rules V6.1
Replace V6.0 with V6.1 August 2024
* New appendix with IT Security requirements
* Terminology changes, reflected in the Glossary (notably discount factor and buffer pool)
Change log for Rainbow Standard Rules V6
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Change log for Rainbow Standard Rules V5.2
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