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# System prepended metadata

title: Polkadot Release Analysis v0.9.35

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# Polkadot Release Analysis v0.9.35



:warning: ***The following report is not an exhaustive list of changes included in the release, but a set of changes that we felt deserved to be highlighted due to their impact on the Polkadot ecosystem builders.*** 

***Please do not stop reading the [release notes v0.9.35](https://github.com/paritytech/polkadot/releases/tag/v0.9.35). This report is complementary to the changelogs, not a replacement.*** 

[Help us improve the release analysis by filling out this 6 question survey.](https://forms.gle/Z2FGG4jMT9GZZLnUA)

# Summary
Please note that this release is for the Kusama (and Westend) runtime only, and does not include client binaries. It can be considered optional from a Polkadot parachain builders perspective.
The main purpose of this release is to fine-tune some OpenGov parameters on the Kusama runtime and remove the requirement for implicit approval chilling upon slash.



## Runtimes built on release v0.9.35

- **Kusama v9350**
- **Westend v9350**

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# ⚠️ PRs Related to Kusama Runtime

### Remove implicit approval chilling upon slash.
PR: https://github.com/paritytech/substrate/pull/12420

**Why is this change interesting for builders?**

[Chilling](https://wiki.polkadot.network/docs/learn-staking#chilling) is the process, when you want to take temporarily pause in staking, either as a nominator or validator. You can go through [How to Chill](https://wiki.polkadot.network/docs/maintain-guides-how-to-chill) to know more about this process. 

At the moment, chilling process is very restrictive. If a slash is canceled, the chilling is not.  This has been a major pain point so far. The purpose of this PR is to protect nominators. Once the slash will be canceled, nominators will be reactivated. You can find the discussion [here](https://forum.polkadot.network/t/kusama-era-4543-slashing/1410/2). This PR adds relaxation to chilling process and removes restrictions on it.


**Does this change have a related companion PR?**

polkadot companion: [#6424](https://github.com/paritytech/polkadot/pull/6424)

**Is there any related issue?**
 [#6835](https://github.com/paritytech/substrate/issues/6835)
 
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### OpenGov: Tweak parameters further
PR: https://github.com/paritytech/polkadot/pull/6416

**How this impacts our polkadot builders?**

This PR should not affect you if you are not using [Open Gov](https://medium.com/polkadot-network/gov2-polkadots-next-generation-of-decentralised-governance-4d9ef657d11b) based governance system. At the moment. [OpenGov](https://medium.com/polkadot-network/gov2-polkadots-next-generation-of-decentralised-governance-4d9ef657d11b) is present only on Kusama.

This PR includes some tweaks in parameters, which are related to preparation, confirmation and enactment delay, by considering real world secenarios.

