adds dencun / cancun info and precompile limits

Author: dghelm

src/content/docs/en/developers/developer-quickstart.mdx

@@ -83,6 +83,10 @@ Use the table below to configure your Ethereum tools to the Scroll Sepolia Testn
   Contracts](/developers/verifying-smart-contracts).
 </Aside>
 
+<Aside type="danger" title="">
+Features from the Dencun upgrade are not yet available on Scroll. Please use `shanghai` as your EVM target and avoid using a Solidity version higher than `0.8.23`.
+</Aside>
+
 ### Hardhat
 
 Modify your Hardhat config file `hardhat.config.ts` to point at the Scroll Sepolia Testnet public RPC.

src/content/docs/en/developers/ethereum-and-scroll-differences.mdx

@@ -20,6 +20,7 @@ For open-source contributors and infrastructure builders, please contact our tea
 
 ## EVM Opcodes
 
+
 | Opcode                      | Solidity equivalent | Scroll Behavior                                                                                            |
 | --------------------------- | ------------------- | ---------------------------------------------------------------------------------------------------------- |
 | `BLOCKHASH`                 | `block.blockhash`   | Returns `keccak(chain_id \|\| block_number)` for the last 256 blocks.                                      |
@@ -28,6 +29,10 @@ For open-source contributors and infrastructure builders, please contact our tea
 | `BASEFEE`                   | `block.basefee`     | Disabled.[^eip1559] If the opcode is encountered, the transaction will be reverted.                        |
 | `SELFDESTRUCT`              | `selfdestruct`      | Disabled. If the opcode is encountered, the transaction will be reverted.[^willadpot]                      |
 
+<Aside type="caution" title="">
+Opcodes from the Cancun upgrade are not yet available on Scroll, including `MCOPY`, `TSTORE`, `TLOAD`, and `BLOBBASEFEE`. Additionally, [EIP-4788](https://eips.ethereum.org/EIPS/eip-4788) for accessing the Beacon Chain block root is not supported. We recommend using `shanghai` as your EVM target and avoiding using a Solidity version higher than `0.8.23`.
+</Aside>
+
 [^eip1559]: We have currently disabled EIP-1559 on Scroll.
 [^willadpot]: Will change to adopt Ethereum’s solution in the future.
 
@@ -41,6 +46,20 @@ The `ecPairing` precompile is supported, but the number of points(sets, pairs) i
 
 The other EVM precompiles are all supported: `ecRecover`, `identity`, `ecAdd`, `ecMul`.
 
+### Precompile Limits
+
+Because of a bounded size of the zkEVM circuits, there is an upper limit on the number of calls that can be made for some precompiles. These transactions will not revert, but simply be skipped by the sequencer if they cannot fit into the space of the circuit. Read more about the [Circuit Capacity Checker](/en/technology/sequencer/execution-node#circuit-capacity-checker). 
+
+| Precompile / Opcode | Limit | 
+| ------------------- | ----- |
+| `keccak256`         | 3157  |
+| `ecRecover`         | 119   |
+| `modexp`            | 23    |
+| `ecAdd`             | 50    |
+| `ecMul`             | 50    |
+| `ecPairing`         | 2     |
+
+
 ## State Account
 
 ### **Additional Fields**

src/content/docs/en/technology/chain/differences.mdx

@@ -7,6 +7,8 @@ permalink: "technology/chain/differences"
 whatsnext: { "Bridge": "/technology/bridge/cross-domain-messaging/" }
 ---
 
+import Aside from "../../../../components/Aside.astro"
+
 ## Opcodes
 
 | Opcode                      | Scroll Behavior                                                                                                  |
@@ -44,3 +46,8 @@ EIPs imported from the Shanghai fork:
 - [EIP-3651](https://eips.ethereum.org/EIPS/eip-3651): Warm `COINBASE`
 - [EIP-3855](https://eips.ethereum.org/EIPS/eip-3855): `PUSH0` instruction
 - [EIP-3860](https://eips.ethereum.org/EIPS/eip-3860): Limit and meter initcode
+
+
+<Aside type="tip" title="">
+Opcodes from the Cancun upgrade are not yet available on Scroll, including `MCOPY`, `TSTORE`, `TLOAD`, and `BLOBBASEFEE`. Additionally, [EIP-4788](https://eips.ethereum.org/EIPS/eip-4788) for accessing the Beacon Chain block root is not supported.
+</Aside>