News346: add topics

Author: harding

_topics/en/ark.md

@@ -36,6 +36,9 @@ optech_mentions:
   - title: "Ark Wallet SDK released"
     url: /en/newsletters/2025/02/21/#ark-wallet-sdk-released
 
+  - title: "Bark implementation of Ark is now available on signet"
+    url: /en/newsletters/2025/03/21/#bark-launches-on-signet
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Joinpools

_topics/en/ecash.md

@@ -44,6 +44,9 @@ optech_mentions:
   - title: "Continued discussion about rewarding pool miners with tradeable ecash shares"
     url: /en/newsletters/2025/01/17/#continued-discussion-about-rewarding-pool-miners-with-tradeable-ecash-shares
 
+  - title: "Hashpool 0.1 tagged based on the Stratum v2 reference implementation with ecash-based shares"
+    url: /en/newsletters/2025/03/21/#hashpool-v0-1-tagged
+
 ## Optional.  Same format as "primary_sources" above
 # see_also:
 #   - title:

_topics/en/fee-estimation.md

@@ -59,6 +59,9 @@ optech_mentions:
   - title: "LDK #3268 adds a more conservative fee estimation method for dust calculations"
     url: /en/newsletters/2024/09/06/#ldk-3268
 
+  - title: "Updated LND sweeper subsystem using multiple feerate estimation methods"
+    url: /en/newsletters/2025/03/21/#discussion-of-lnd-s-dynamic-feerate-adjustment-system
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Coin selection

_topics/en/htlc.md

@@ -99,6 +99,9 @@ optech_mentions:
   - title: "LDK #3556 proactively fails HTLCs backwards near expiration even before upstream confirmation"
     url: /en/newsletters/2025/02/07/#ldk-3556
 
+  - title: "BOLTs #1233 adds recommendation to never fail an HTLC upstream if the node knows the preimage"
+    url: /en/newsletters/2025/03/21/#bolts-1233
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Hash Time Locked Contracts from Bitcoin Wiki

_topics/en/pooled-mining.md

@@ -86,6 +86,12 @@ optech_mentions:
   - title: "Deterministic transaction selection from a committed mempool for Braidpool decentralized mining"
     url: /en/newsletters/2025/02/07/#deterministic-transaction-selection-from-a-committed-mempool
 
+  - title: "Hashpool 0.1 tagged based on the Stratum v2 reference implementation with ecash-based shares"
+    url: /en/newsletters/2025/03/21/#hashpool-v0-1-tagged
+
+  - title: "DMND pool launches Stratum v2 pooled mining"
+    url: /en/newsletters/2025/03/21/#dmnd-launching-pooled-mining
+
 ## Optional.  Same format as "primary_sources" above
 #see_also:
 #  - title:

_topics/en/replace-by-fee.md

@@ -201,6 +201,9 @@ optech_mentions:
   - title: "Bitcoin Core #30592 removes the `mempoolfullrbf` setting"
     url: /en/newsletters/2024/11/15/#bitcoin-core-30592
 
+  - title: "Updated LND sweeper subsystem for choosing appropriate RBF feerates"
+    url: /en/newsletters/2025/03/21/#discussion-of-lnd-s-dynamic-feerate-adjustment-system
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Transaction pinning

_topics/en/replacement-cycling.md

@@ -38,6 +38,9 @@ optech_mentions:
   - title: "Variant of replacement cycling attack that could benefit exploitative miners"
     url: /en/newsletters/2025/01/31/#replacement-cycling-attacks-with-miner-exploitation
 
+  - title: "Updated LND sweeper subsystem for fee bumping to improve replacement cycling resistance"
+    url: /en/newsletters/2025/03/21/#discussion-of-lnd-s-dynamic-feerate-adjustment-system
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Transaction replacement

_topics/en/threshold-signature.md

@@ -61,6 +61,9 @@ optech_mentions:
   - title: "Updated ChillDKG draft for distributed key generation for FROST"
     url: /en/newsletters/2025/01/03/#updated-chilldkg-draft
 
+  - title: "FROSTR library for k-of-n signing and key management on nostr"
+    url: /en/newsletters/2025/03/21/#frostr-protocol-announced
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Scriptless multisignature

_topics/en/transaction-pinning.md

@@ -93,6 +93,9 @@ optech_mentions:
   - title: "LDK #3340 introduces batching of on-chain claim transactions with pinnable outputs"
     url: /en/newsletters/2025/01/03/#ldk-3340
 
+  - title: "Updated LND sweeper subsystem for fee bumping to improve transaction pinning resistance"
+    url: /en/newsletters/2025/03/21/#discussion-of-lnd-s-dynamic-feerate-adjustment-system
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
    - title: CPFP carve out