Merge pull request #2184 from input-output-hk/jpraynaud/2034-dev-blog…

…-post-era-switch-pythagoras

Docs: add dev blog post for era switch to `Pythagoras`

docs/website/blog/2024-12-17-distribution-2450.md

@@ -26,6 +26,9 @@ If you are running a **Mithril signer** on:
 - the **release-mainnet** network: you can upgrade the binary of your signer node to the version `0.2.221`, no configuration update is needed.
 
 You can **easily update your Mithril signer with this one line command** (it will be downloaded in the current directory, a custom folder can be specified with `-p` option):
-`curl --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/input-output-hk/mithril/refs/heads/main/mithril-install.sh | sh -s -- -c mithril-signer -d 2450.0 -p $(pwd)`
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/input-output-hk/mithril/refs/heads/main/mithril-install.sh | sh -s -- -c mithril-signer -d 2450.0 -p $(pwd)
+```
 
 For any inquiries or assistance, feel free to contact the team on the [Discord channel](https://discord.gg/5kaErDKDRq).

docs/website/blog/2024-12-17-era-switch-pythagoras.md

@@ -0,0 +1,52 @@
+---
+title: Era switch to Pythagoras
+authors:
+  - name: Mithril Team
+tags: [era, switch, thales, pythagoras]
+---
+
+### Era switch to Pythagoras
+
+We have introduced the **Pythagoras era** in the Mithril networks. The era switch to `Pythagoras` is a significant milestone that brings new features and improvements to the Mithril protocol.
+
+:::danger
+
+The **Mithril signer versions** compatible with the new `Pythagoras` era are:
+
+- `0.2.221`
+- `0.2.209`
+- `0.2.200`
+
+All the other versions are not compatible with the new era and must be updated.
+
+:::
+
+:::tip
+
+You can easily update your Mithril signer with this one line command (it will be downloaded in the current directory, a custom folder can be specified with `-p` option):
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/input-output-hk/mithril/refs/heads/main/mithril-install.sh | sh -s -- -c mithril-signer -d latest -p $(pwd)
+```
+
+:::
+
+The era switch to `Pythagoras` plan is the following:
+
+- [x] Era switch on `pre-release-preview`:
+  - [x] Create the era switch transaction (done at epoch `757`).
+  - [x] Era switch to `Pythagoras` took place at the transition to epoch `759`.
+- [x] Era switch on `release-preprod`:
+  - [x] Create the era switch transaction (done at epoch `184`).
+  - [x] Era switch to `Pythagoras` took place at the transition to epoch `186`.
+- [ ] Era switch on `release-mainnet`:
+  - [ ] Create the era switch transaction (**to be done, expected early January 2025**).
+  - [ ] Era switch to `Pythagoras`.
+
+:::info
+
+We use the **era switch mechanism to introduce breaking changes** in the Mithril protocol. The new features and improvements are not backward compatible with the previous era. This means that a large majority of at least `95%` of the stake running the new version is required to activate the new era. More information about the era switch mechanism can be found in the [Mithril Network Upgrade Strategy](https://mithril.network/doc/adr/4) ADR.
+
+:::
+
+For any inquiries or assistance, don't hesitate to contact the team on the [Discord channel](https://discord.gg/5kaErDKDRq).