diff --git a/content/2026-04-29-socratic-seminar-12.md b/content/2026-04-29-socratic-seminar-12.md
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@@ -67,8 +67,63 @@ Un agradecimiento especial a nuestro sponsor **[Libreria de Satoshi](https://lib
 
 ### Noticias
 
+- [BitRefill cyberattack](https://x.com/bitrefill/status/2033931580352221656)
+- [Square auto-enables bitcoin payments para US sellers](https://squareup.com/us/en/press/square-bitcoin)
+- [Bitcoin Under Stress: Measuring Infrastructure Resilience 2014-2025](https://www.tomshardware.com/tech-industry/cryptocurrency/bitcoin-is-so-resilient-it-could-survive-as-much-as-90-percent-of-the-worlds-undersea-cables-failing-simultaneously-study-reveals-bitcoin-could-still-be-very-vulnerable-to-targeted-attacks-however)
 
 
 ## Temas
 
 
+### Bitcoin
+
+**Releases:**
+- [Bitcoin Core 31.0](https://bitcoincore.org/en/releases/31.0/)
+- [Core Lightning 26.04](https://github.com/ElementsProject/lightning/releases/tag/v26.04)
+- [Coldcard 6.5.0](https://coldcard.com/docs/upgrade/#edge-version-650xqx-musig2-miniscript-and-taproot-support)
+
+**Development:**
+- [Hornet Node update: declarative executable specification of consensus rules](https://delvingbitcoin.org/t/hornet-update-a-declarative-executable-specification-of-consensus-rules/2420)
+
+### Security
+
+- [Onion message jamming in the Lightning Network](https://delvingbitcoin.org/t/onion-message-jamming-in-the-lightning-network/2414)
+- [Formal verification of secp256k1 modular scalar multiplication](https://groups.google.com/g/bitcoindev/c/l7AdGAKd1Oo)
+
+### BIPs & Proposals — Post-Quantum
+
+- [BIP361: Post-Quantum Migration and Legacy Signature Sunset](https://github.com/bitcoin/bips/blob/master/bip-0361.mediawiki) — [bip361.org](https://www.bip361.org/)
+- [SHRIMPS: 2.5 KB post-quantum signatures across multiple stateful devices](https://delvingbitcoin.org/t/shrimps-2-5-kb-post-quantum-signatures-across-multiple-stateful-devices)
+- [Compact Isogeny PQC can replace HD wallets, key-tweaking, silent payments](https://delvingbitcoin.org/t/compact-isogeny-pqc-can-replace-hd-wallets-key-tweaking-silent-payments/2324)
+- [Lattice HD Wallets: Post-Quantum BIP32 Hierarchical Deterministic Wallets from Lattice Assumptions](https://eprint.iacr.org/2026/380)
+- [Post-Quantum BIP-86 Recovery via zk-STARK Proof of BIP-32 Seed Knowledge](https://groups.google.com/g/bitcoindev/c/Q06piCEJhkI)
+
+### BIPs & Proposals — Otros
+
+- [BIP376: Spending Silent Payment outputs with PSBTs](https://github.com/bitcoin/bips/blob/master/bip-0376.mediawiki)
+
+### Lightning Network
+
+- [Towards a K-of-N Lightning Network Node](https://delvingbitcoin.org/t/towards-a-k-of-n-lightning-network-node/2395)
+- [LDK #4515: Zero-fee commitment channels to production feature bit](https://github.com/lightningdevkit/rust-lightning/issues/4515)
+- [LND #9985: Simple taproot channels en producción](https://github.com/lightningnetwork/lnd/issues/9985)
+
+### Layer 2
+
+- [Building a CoinPool with OP_CHECKCONTRACTVERIFY](https://groups.google.com/g/bitcoindev/c/vabQdTxHkrA)
+
+### Mining
+
+- [Rent Some Hash](https://rentsomehash.com/)
+- [My First Petahash](https://pablohere.contrapeso.xyz/writings/my-first-petahash.html)
+
+### Tools & Development
+
+- [Utreexod 0.5 con SwiftSync](https://delvingbitcoin.org/t/new-utreexo-releases/2371)
+- [verso: Bitcoin wallet privacy analyzer](https://github.com/aljazceru/verso/)
+- [Am I exposed? — Bitcoin privacy scanner](https://am-i.exposed/)
+
+### Miscellaneous
+
+- [A SHA-256 Hash That Is Also a Valid ECDSA Signature](https://github.com/RobinLinus/sha2-ecdsa)
+- [Letting Untrusted LLMs Sign Bitcoin Batches: MCP Bridge + TEE-Enforced 25-Tx Daisy Chains](https://delvingbitcoin.org/t/letting-untrusted-llms-sign-bitcoin-batches-mcp-bridge-tee-enforced-25-tx-daisy-chains)
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