Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)
4 of 7 committee members voted
- Ace Alliance71aa5b3a…8f04YesActive · term ends epoch 726Rationale
Ace Alliance finds the proposed "Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)" Protocol Parameter Change Governance Action Constitutional. Rationales are archived at https://github.com/ace-alliance/ace-voting/
A PDF version of this rationale is also made available.
"Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)" (gov_action14dr...tqntpk) is a Protocol Parameter Change Governance Action proposed through the Intersect Parameter Committee. It bundles two previously recommended changes: a reduction of minPoolCost from 170 ada to 75 ada, and the second and final step of an approved 25 percent increase to the Plutus memory limits, raising maxTxExecutionUnits memory from 16,500,000 to 17,500,000 units and maxBlockExecutionUnits memory from 72,000,000 to 77,500,000 units. The action also restates both execution step limits at their current values, which effects no change.
Under Article II.6.1, governance actions "shall follow a standardized and legible format before being recorded or enacted on-chain" with an anchor document that is "immutable and incapable of being altered after submission". The proposal anchor is a content addressed IPFS document whose hash matches the on-chain record, and it contains the title, abstract, justification, and supporting materials that Article II.6.2 requires.
Under Article II.6.3, "Hard Fork Initiation" and "Parameter Update" actions "shall undergo sufficient technical review and scrutiny as mandated by the Guardrails to ensure that the governance action does not endanger the security, functionality, performance, or long-term sustainability of the Cardano Blockchain." The record here is substantial. The minPoolCost reduction is the subject of Parameter Committee proposal PCP-006, published 30 March 2026 and ratified by the Intersect Technical Steering Committee on 9 July 2026. The memory increase was recommended by the Parameter Committee on 8 May 2025 and ratified by the Technical Steering Committee on 1 October 2025, covering the complete two step plan of which Part 1 was enacted at epoch 614; the full target values of both memory parameters were exercised together on the Preview testnet in July 2026. On the record before us, that is sufficient.
The Appendix I parameter guardrails are met on the on-chain values. The memory increases satisfy the hard bounds of MTEU-M-01, which requires that maxTxExecutionUnits memory "must not exceed 40,000,000 units", and MBEU-M-01, which caps maxBlockExecutionUnits memory at 120,000,000 units, and neither parameter is decreased. The per epoch change limits that necessitated the two step structure are respected: this action increases the transaction memory limit by 1,000,000 units against the 2,500,000 unit guidance of MTEU-M-04, and the block memory limit by 5,500,000 units against the 10,000,000 unit guidance of MBEU-M-03. The minPoolCost reduction satisfies MPC-01 and MPC-02, remaining non negative and below the 500 ada ceiling. Both critical parameter tracks of Appendix I.2.1 are engaged and satisfied: maxBlockExecutionUnits is critical to the operation of the blockchain, so under PARAM-03a and Article II.5.1 the action requires SPO ratification, and the 90 day interval of PARAM-04a between off-chain publication and on-chain submission is exceeded by more than a year; minPoolCost is critical to the governance system, so PARAM-05a applies its DRep threshold and the 90 day interval of PARAM-06a is satisfied by the roughly 111 days between the publication of PCP-006 and submission. These threshold requirements are enforced by the ledger and are noted here as satisfied preconditions rather than open questions.
Ace Alliance finds the proposed "Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)" Protocol Parameter Change Governance Action Constitutional under Article II.6 and the applicable Appendix I parameter guardrails.
- Cardano Japan Council725d4d44…7b31YesActive · term ends epoch 653Rationale
We consider this governance action to be constitutional.
This proposal is a Parameter Update Governance Action by Intersect's Parameter Committee regarding "Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)." This proposal recommends lowering minPoolCost from 170 ada to 75 ada, and raising maxTxExecutionUnits[memory] from 16,500,000 to 17,500,000 and maxBlockExecutionUnits[memory] from 72,000,000 to 77,500,000. Regarding Article 2, Section 6, Paragraphs 1 and 2 of the Cardano Constitution, this proposal refers to the proposal document on IPFS and presents a title, summary, justification, and relevant supplementary materials; we therefore determine that it complies with these requirements. Regarding Article 2, Section 6, Paragraph 3 of the Cardano Constitution, in addition to the deliberation process regarding the change to minPoolCost, the proposal explains the Parameter Committee's recommendation regarding the Plutus memory limit, the Technical Steering Committee's approval, implementation on the Preview testnet, and performance evaluations using node versions 10.2 and 10.3. We therefore determine that the necessary technical reviews and verifications have been conducted. The change to minPoolCost of 75 ADA meets the requirements of MPC-01 and MPC-02, and the economic rationale for this setting is explained in MPC-03. We have also confirmed that the 90-day advance notice requirement specified in PARAM-06a has been met. Regarding the Plutus memory limit, consistency with MTEU-M-01 through MTEU-M-04, MBEU-M-01 through MBEU-M-04a, and MEU-M-01 has been demonstrated, and consistency with NETWORK-01 and NETWORK-02 has also been explained. It also confirms compliance with the 90-day advance notice requirement specified in PARAM-04a. Furthermore, it explains that, due to the change in maxBlockExecutionUnits[memory], an SPO vote based on PARAM-03a will be required. Therefore, since no clear conflict with the Cardano Constitution has been identified, we determine that this proposal is constitutional.
For the reasons stated above, we determine that it is constitutional.
- Eastern Cardano Council2ea7a78e…10ecYesActive · term ends epoch 726Rationale
We have determined that this Parameter Change governance action is constitutional.
Article II, Section 6.3 of the Cardano Constitution states ""Hard Fork Initiation" and "Parameter Update" actions shall undergo sufficient technical review and scrutiny as mandated by the Guardrails to ensure that the governance action does not endanger the security, functionality, performance, or long-term sustainability of the Cardano Blockchain."
The governance action with ID “gov_action14dr...tqntpk” and title “Reduce minPoolCost to 75 ada and increase Plutus Memory Limits (Part 2)”, as a Parameter Change governance action, has undergone appropriate technical review through the Intersect Parameter Committee and Technical Steering Committee. This includes an assessment of the security, functionality and performance impact of the proposed changes to minPoolCost, maxTxExecutionUnits and maxBlockExecutionUnits.
The governance action complies with the relevant guardrails, being MPC-01/02/03, MTEU-M-01/02/03/04, MBEU-M-01/02/03/04a and MEU-M-01. It also provides a Reversion Plan as required by Appendix I, Section 2.6.
We therefore find this governance action Constitutional.
As a Parameter Change, this governance action has undergone sufficient technical review and complies with the relevant guardrails in the Cardano Constitution, so is deemed constitutional.
- Tingvard646d1b3a…be43YesActive · term ends epoch 726Rationale
Tingvard judges this governance action constitutional.
This governance action is properly framed as a Parameter Update action and proposes changes to three protocol parameter values: minPoolCost, maxTxExecutionUnits[memory], and maxBlockExecutionUnits[memory].
The proposed minPoolCost reduction from 170 ada to 75 ada remains within the constitutional guardrails for minPoolCost. The proposed value is positive and below the maximum permitted value under MPC-01 and MPC-02. The Constitution identifies minPoolCost as a governance-critical parameter and therefore requires the applicable DRep threshold under PARAM-05. The action does not seek to alter the parameter outside the permitted constitutional range.
The proposed increases to the Plutus memory execution limits are likewise within the applicable constitutional guardrails. maxTxExecutionUnits[memory] would increase from 16,500,000 to 17,500,000, remaining below the 40,000,000 maximum under MTEU-M-01 and within the permitted per-epoch increase under MTEU-M-04. maxBlockExecutionUnits[memory] would increase from 72,000,000 to 77,500,000, remaining below the 120,000,000 maximum under MBEU-M-01 and within the permitted per-epoch increase under MBEU-M-03. The proposed block limit also remains greater than the transaction limit, satisfying MEU-M-01.
The action provides evidence of prior technical evaluation, including testing of the complete target values on Preview and performance analysis of the proposed Plutus memory increases. The supplied rationale states that the relevant performance analysis found adequate headroom in the critical timing metrics. This is consistent with the Constitution's requirement that changes to technical and network parameters take security, performance, functionality, and long-term sustainability into account.
The bundling of the changes does not itself create a constitutional violation. minPoolCost belongs to the economic parameter group, while the two Plutus memory limits are directly correlated network parameters. The Constitution does not prohibit multiple parameter changes within a single Parameter Update action where the applicable guardrails are satisfied. The inclusion of the Plutus memory parameters also appropriately brings the action within the SPO voting requirement applicable to parameters critical to the operation of the blockchain.
The proposed changes are also consistent with the constitutional objectives of long-term sustainability and fair treatment under Article I, § 1. The reduction of minPoolCost is intended to address the economic position of smaller stake pools, while the increased Plutus memory limits provide additional execution capacity for applications on Cardano. The Constitution does not prescribe a particular economic setting for minPoolCost, but establishes boundaries within which the parameter may be changed.
The action therefore remains within the constitutional limits applicable to each parameter and provides technical and economic justification for the proposed changes.
Tingvard finds this governance action constitutional. The proposed changes to minPoolCost, maxTxExecutionUnits[memory], and maxBlockExecutionUnits[memory] remain within their applicable constitutional Guardrails. The action provides technical and economic justification, and the applicable voting requirements are preserved. Tingvard therefore finds no constitutional basis to reject the action.
- 68bb0b42…874668bb0b42…8746Not votedActive · term ends epoch 653No rationale
- Cardano Curia84feba94…6bd5Not votedActive · term ends epoch 653No rationale
- KtorZ64f97568…3a49Not votedActive · term ends epoch 653No rationale