added more old news

astro.config.mjs

@@ -27,7 +27,7 @@ export default defineConfig({
 					prefix: 'news',
 					authors: {
 						dimitris: {
-							// Author configuration for the `alice` author goes here.
+							// Author configuration for the `dimitris` author goes here.
 							name: 'Dimitris',
 							url: 'https://dimitris.apeiro.gr'
 						},

src/content/docs/news/socnetv-v23-released.md

@@ -0,0 +1,42 @@
+---
+title: "SocNetV 2.3 Released"
+description: "SocNetV version 2.3 has been released."
+date: 2017-07-05
+---
+
+The Social Network Visualizer project is happy to announce that a brand new version of our favorite [social network analysis and visualization software application](http://socnetv.org) has been released. SocNetV version 2.3, released on Jul 5, has the eloquent codename "fixer" and it is now available for Windows, Mac OS X, and Linux from the [Downloads](http://socnetv.org/downloads/) page.
+
+## What the new version brings to the users?
+
+As usual with our odd-numbered minor versions, this is a bugfix release. While v2.2 brought a lot of new and important features, v2.3 focuses on stability and fixing bugs here and there. Nevertheless, there are a couple of new features as well, which you may find interesting for your network analysis endeavors:
+
+### Dyad and Actor/Ego Reciprocity
+
+Reciprocity, denoted by 'r,' is a network cohesion index. It measures the likelihood of vertices in a directed network to be mutually linked. SocNetV v2.3 supports two different methods to index the degree of reciprocity in a social network:
+
+- **Arc reciprocity**: The fraction of reciprocated ties over all actual ties in the network.
+- **Dyad reciprocity**: The fraction of actor pairs that have reciprocated ties over all pairs of actors that have any connection.
+
+In a directed network:
+- Arc reciprocity measures the proportion of directed edges that are bidirectional. If the reciprocity is 1, the adjacency matrix is structurally symmetric.
+- Dyad reciprocity measures the proportion of connected actor dyads that have bidirectional ties between them.
+
+In an undirected graph, all edges are reciprocal, and the reciprocity of the graph is always 1.
+
+You can compute reciprocity on undirected, directed, and weighted graphs from the toolbox/menu: `Analyze > Cohesion > Reciprocity`. The report is opened and displayed as usual in HTML format in your preferred web browser.
+
+### Zero-weighted Edge Support
+
+In ordinary SNA, zero-weighted edges are thought to be meaningless, but a user pointed out that SocNetV was accepting and drawing zero-valued edges when opening edge list formatted files. This behavior was due to a bug. 
+
+The concept of an edge in SNA (and SocNetV) is that two actors \(i\) and \(j\) are "connected" (and an edge is drawn between them) only if there is a non-zero value at sociomatrix cell \(A(i,j)\). Thus, if \(A(i,j) = 0\), the actors are considered not directly connected, and no edge should be drawn between them.
+
+This assumption has implications for computations: all centrality and matrix manipulation algorithms of network analysis implicitly compute their results using only non-zero (and some only positive) weighted edges. 
+
+To accommodate users who may need this functionality for visualization purposes, we implemented support for zero-weighted edges in v2.3. This functionality currently works only for weighted edge lists and for simple visualizations.
+
+### Zero-weighted Edge Color Selection
+
+With the new feature above, the Settings dialog allows users to select a default edge color for zero-valued edges. Here is a screenshot:
+
+![SocNetV v2.3 Settings Dialog](http://www.socnetv.org/data/uploads/screenshots/23/socnetv23-dialog.png)

src/content/docs/news/socnetv-v25-released.md

@@ -1,5 +1,5 @@
 ---
-title: "SocNetV v2.5 Released"
+title: "SocNetV v2.5 released with lots of new features and new looks!"
 date: 2019-03-08
 description: "SocNetV v2.5 Released with Lots of New Features and New Looks!"
 tags: