diff --git a/core/cap-0066.md b/core/cap-0066.md
index 6f58227c5..f71ad8c11 100644
--- a/core/cap-0066.md
+++ b/core/cap-0066.md
@@ -319,7 +319,7 @@ For this reason, rent fees for `CONTRACT_DATA` will continue to be based on the
 
 #### Initial Network Config Settings
 
-Initially, all disk read limits and fees should match exactly the limits and fees of reads today. Limits must not
+Initially, all disk read limits should match exactly the limits and fees of reads today. Limits must not
 decrease from current values in order to prevent bricking existing contracts. In the worst case, a contract can read
 up to `txMaxReadEntries - 1` classic entries today (all classic entries + SAC instance). Current limits have been
 carefully measured assuming disk access only, so the addition of in-memory state should not negatively affect the network
@@ -334,7 +334,16 @@ Note, that there is also a 'soft' limit on the maximum number of reads per trans
 
 When the protocol is upgraded to version 23 the initial values of the new configuration settings will be set to the following values:
 - `txMaxInMemoryReadEntries` will be set to the current value of `txMaxDiskReadEntries` (renamed from `txMaxReadLedgerEntries`) in order to prevent breakages of any existing contracts
-- `feeWrite1KB` will be set to `10000` stroops, which roughly matches the current Soroban write fee per 1 KB
+- `feeWrite1KB` will be set to `3'500` stroops, which is roughly 2x of the current Soroban read fee per 1 KB. Note, that this fee is decoupled from the rent write fee now.
+
+#### Rent-related network settings update
+
+Since Soroban live state will be used for the rent write fee computation, the fee-related configuration will be updated. The goal of the update is to keep the current rent write fee around `11'000` stroops, which is the rent write fee for Stellar mainnet. This update assumes that the live Soroban state on protocol upgrade is around 600 MB.
+
+- `sorobanStateTargetSizeBytes` set to `1'500'000'000` (1.5 GB)
+- `rentFee1KBSorobanStateSizeLow` set to `10'633`
+- `rentFee1KBSorobanStateSizeHigh` set to `11'550`
+- `sorobanStateRentFeeGrowthFactor` will stay at its current value
 
 #### `archivedEntries` Vector